./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs --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 9668b946af76644b8fa4631a2788ccda3020fa9d .................................................................................................................................................................................................................................................................................................................................................................................. 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_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs --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 9668b946af76644b8fa4631a2788ccda3020fa9d .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.1-dev-5709675 [2021-10-16 02:05:15,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:05:15,637 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:05:15,702 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:05:15,703 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:05:15,705 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:05:15,707 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:05:15,710 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:05:15,713 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:05:15,715 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:05:15,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:05:15,719 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:05:15,720 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:05:15,721 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:05:15,724 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:05:15,726 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:05:15,727 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:05:15,729 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:05:15,733 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:05:15,736 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:05:15,739 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:05:15,743 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:05:15,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:05:15,746 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:05:15,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:05:15,752 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:05:15,753 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:05:15,754 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:05:15,755 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:05:15,761 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:05:15,762 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:05:15,763 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:05:15,766 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:05:15,768 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:05:15,770 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:05:15,771 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:05:15,772 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:05:15,772 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:05:15,773 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:05:15,778 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:05:15,780 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:05:15,781 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 02:05:15,839 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:05:15,840 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:05:15,842 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:05:15,843 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:05:15,843 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:05:15,843 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:05:15,844 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:05:15,844 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:05:15,844 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:05:15,844 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:05:15,853 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:05:15,854 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:05:15,854 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:05:15,855 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:05:15,855 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:05:15,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:05:15,856 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:05:15,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:05:15,857 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:05:15,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:05:15,858 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:05:15,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:05:15,858 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:05:15,858 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:05:15,859 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:05:15,859 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:05:15,859 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:05:15,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:05:15,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:05:15,860 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:05:15,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:05:15,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:05:15,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:05:15,862 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:05:15,862 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:05:15,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:05:15,863 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:05:15,863 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:05:15,863 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:05:15,864 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_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9668b946af76644b8fa4631a2788ccda3020fa9d [2021-10-16 02:05:16,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:05:16,232 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:05:16,235 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:05:16,237 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:05:16,238 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:05:16,239 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound1.c [2021-10-16 02:05:16,353 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/data/9eeec2e55/5748782673604b69a4ddf323225393bd/FLAGda6a2c8b9 [2021-10-16 02:05:16,901 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:05:16,901 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound1.c [2021-10-16 02:05:16,918 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/data/9eeec2e55/5748782673604b69a4ddf323225393bd/FLAGda6a2c8b9 [2021-10-16 02:05:17,224 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/data/9eeec2e55/5748782673604b69a4ddf323225393bd [2021-10-16 02:05:17,229 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:05:17,231 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:05:17,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:05:17,235 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:05:17,242 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:05:17,243 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:05:17" (1/1) ... [2021-10-16 02:05:17,245 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b9b3efe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:05:17, skipping insertion in model container [2021-10-16 02:05:17,246 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:05:17" (1/1) ... [2021-10-16 02:05:17,255 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:05:17,274 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:05:17,482 WARN L228 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_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound1.c[458,471] [2021-10-16 02:05:17,511 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:05:17,526 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:05:17,545 WARN L228 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_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound1.c[458,471] [2021-10-16 02:05:17,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:05:17,587 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:05:17,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:05:17 WrapperNode [2021-10-16 02:05:17,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:05:17,590 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:05:17,590 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:05:17,590 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:05:17,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:05:17" (1/1) ... [2021-10-16 02:05:17,608 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:05:17" (1/1) ... [2021-10-16 02:05:17,631 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:05:17,632 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:05:17,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:05:17,633 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:05:17,643 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:05:17" (1/1) ... [2021-10-16 02:05:17,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:05:17" (1/1) ... [2021-10-16 02:05:17,645 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:05:17" (1/1) ... [2021-10-16 02:05:17,646 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:05:17" (1/1) ... [2021-10-16 02:05:17,650 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:05:17" (1/1) ... [2021-10-16 02:05:17,655 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:05:17" (1/1) ... [2021-10-16 02:05:17,657 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:05:17" (1/1) ... [2021-10-16 02:05:17,659 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:05:17,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:05:17,660 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:05:17,661 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:05:17,662 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:05:17" (1/1) ... [2021-10-16 02:05:17,677 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:05:17,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:05:17,704 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:05:17,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:05:17,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 02:05:17,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:05:17,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:05:17,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:05:18,073 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:05:18,073 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-10-16 02:05:18,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:05:18 BoogieIcfgContainer [2021-10-16 02:05:18,077 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:05:18,079 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:05:18,079 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:05:18,088 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:05:18,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:05:17" (1/3) ... [2021-10-16 02:05:18,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a0706e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:05:18, skipping insertion in model container [2021-10-16 02:05:18,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:05:17" (2/3) ... [2021-10-16 02:05:18,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a0706e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:05:18, skipping insertion in model container [2021-10-16 02:05:18,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:05:18" (3/3) ... [2021-10-16 02:05:18,092 INFO L111 eAbstractionObserver]: Analyzing ICFG ps4-ll_valuebound1.c [2021-10-16 02:05:18,100 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:05:18,100 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-16 02:05:18,164 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:05:18,174 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 02:05:18,174 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-16 02:05:18,194 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 15 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:05:18,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-16 02:05:18,200 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:05:18,201 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-16 02:05:18,202 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:05:18,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:05:18,210 INFO L82 PathProgramCache]: Analyzing trace with hash 2997072, now seen corresponding path program 1 times [2021-10-16 02:05:18,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:05:18,234 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415308536] [2021-10-16 02:05:18,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:05:18,250 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:05:18,456 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-16 02:05:18,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1332849684] [2021-10-16 02:05:18,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:05:18,462 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:05:18,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:05:18,464 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:05:18,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-16 02:05:18,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:05:18,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 02:05:18,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:05:18,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:05:18,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:05:18,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:05:18,933 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:05:18,934 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415308536] [2021-10-16 02:05:18,934 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 02:05:18,935 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332849684] [2021-10-16 02:05:18,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1332849684] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:05:18,936 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:05:18,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:05:18,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19246958] [2021-10-16 02:05:18,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 02:05:18,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:05:18,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 02:05:18,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:05:18,967 INFO L87 Difference]: Start difference. First operand has 16 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 15 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:05:54,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:05:54,897 INFO L93 Difference]: Finished difference Result 36 states and 48 transitions. [2021-10-16 02:05:54,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 02:05:54,899 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-16 02:05:54,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:05:54,910 INFO L225 Difference]: With dead ends: 36 [2021-10-16 02:05:54,910 INFO L226 Difference]: Without dead ends: 11 [2021-10-16 02:05:54,915 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35059.2ms TimeCoverageRelationStatistics Valid=18, Invalid=23, Unknown=1, NotChecked=0, Total=42 [2021-10-16 02:05:54,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-16 02:05:54,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-16 02:05:54,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:05:54,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2021-10-16 02:05:54,960 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 4 [2021-10-16 02:05:54,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:05:54,962 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2021-10-16 02:05:54,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:05:54,964 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2021-10-16 02:05:54,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-16 02:05:54,966 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:05:54,966 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2021-10-16 02:05:55,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:05:55,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-10-16 02:05:55,193 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:05:55,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:05:55,195 INFO L82 PathProgramCache]: Analyzing trace with hash 1480619493, now seen corresponding path program 1 times [2021-10-16 02:05:55,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:05:55,195 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063203830] [2021-10-16 02:05:55,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:05:55,196 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:05:55,217 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-16 02:05:55,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [912131516] [2021-10-16 02:05:55,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:05:55,219 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:05:55,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:05:55,220 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:05:55,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-16 02:05:55,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:05:55,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-16 02:05:55,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:05:55,887 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:05:55,888 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:06:12,602 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:06:12,602 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:06:12,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063203830] [2021-10-16 02:06:12,603 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 02:06:12,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [912131516] [2021-10-16 02:06:12,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [912131516] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:06:12,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2144375529] [2021-10-16 02:06:12,631 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-10-16 02:06:12,632 INFO L166 IcfgInterpreter]: Building call graph [2021-10-16 02:06:12,637 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-16 02:06:12,645 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-16 02:06:12,645 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-16 02:06:12,682 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:06:12,685 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:06:12,686 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:06:12,687 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-16 02:06:12,688 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:06:12,689 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:06:12,689 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-16 02:06:12,693 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-10-16 02:06:12,742 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-16 02:06:12,742 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:06:12,743 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-16 02:06:12,744 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:06:12,744 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-16 02:06:12,745 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-16 02:06:12,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:06:12,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:06:12,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:06:12,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-16 02:06:12,782 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:06:12,783 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 02:06:12,784 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:06:12,785 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 02:06:12,785 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-16 02:06:12,795 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-16 02:06:12,796 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:06:12,797 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-16 02:06:12,798 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:06:12,802 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-16 02:06:12,803 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-16 02:06:12,806 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:06:12,921 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:06:12,938 INFO L180 QuantifierPusher]: treesize reduction 8, result has 94.7 percent of original size [2021-10-16 02:06:12,940 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-10-16 02:06:12,940 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-16 02:06:12,941 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:444, output treesize:144 [2021-10-16 02:06:12,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-10-16 02:06:13,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:06:13,143 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_#valid_14| at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.constructTermVarsProc(BasicPredicateFactory.java:92) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.newPredicate(BasicPredicateFactory.java:81) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.predicate(SymbolicTools.java:174) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) 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) [2021-10-16 02:06:13,147 INFO L168 Benchmark]: Toolchain (without parser) took 55915.58 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 69.7 MB in the beginning and 48.2 MB in the end (delta: 21.6 MB). Peak memory consumption was 42.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:06:13,149 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 102.8 MB. Free memory is still 58.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:06:13,153 INFO L168 Benchmark]: CACSL2BoogieTranslator took 353.55 ms. Allocated memory is still 102.8 MB. Free memory was 69.5 MB in the beginning and 78.2 MB in the end (delta: -8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:06:13,154 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.74 ms. Allocated memory is still 102.8 MB. Free memory was 78.2 MB in the beginning and 76.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:06:13,155 INFO L168 Benchmark]: Boogie Preprocessor took 27.21 ms. Allocated memory is still 102.8 MB. Free memory was 76.8 MB in the beginning and 75.8 MB in the end (delta: 993.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:06:13,156 INFO L168 Benchmark]: RCFGBuilder took 416.75 ms. Allocated memory is still 102.8 MB. Free memory was 75.5 MB in the beginning and 64.2 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:06:13,160 INFO L168 Benchmark]: TraceAbstraction took 55066.93 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 63.5 MB in the beginning and 48.2 MB in the end (delta: 15.3 MB). Peak memory consumption was 39.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:06:13,164 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 102.8 MB. Free memory is still 58.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 353.55 ms. Allocated memory is still 102.8 MB. Free memory was 69.5 MB in the beginning and 78.2 MB in the end (delta: -8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.74 ms. Allocated memory is still 102.8 MB. Free memory was 78.2 MB in the beginning and 76.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.21 ms. Allocated memory is still 102.8 MB. Free memory was 76.8 MB in the beginning and 75.8 MB in the end (delta: 993.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 416.75 ms. Allocated memory is still 102.8 MB. Free memory was 75.5 MB in the beginning and 64.2 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 55066.93 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 63.5 MB in the beginning and 48.2 MB in the end (delta: 15.3 MB). Peak memory consumption was 39.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#valid_14| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#valid_14|: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-16 02:06:13,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:06:16,202 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:06:16,204 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:06:16,243 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:06:16,244 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:06:16,246 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:06:16,249 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:06:16,259 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:06:16,262 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:06:16,263 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:06:16,265 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:06:16,266 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:06:16,267 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:06:16,277 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:06:16,280 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:06:16,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:06:16,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:06:16,286 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:06:16,293 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:06:16,301 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:06:16,309 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:06:16,311 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:06:16,313 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:06:16,314 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:06:16,319 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:06:16,319 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:06:16,320 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:06:16,321 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:06:16,322 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:06:16,324 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:06:16,324 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:06:16,325 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:06:16,327 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:06:16,328 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:06:16,329 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:06:16,330 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:06:16,331 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:06:16,331 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:06:16,332 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:06:16,333 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:06:16,334 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:06:16,335 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 02:06:16,368 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:06:16,369 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:06:16,370 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:06:16,370 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:06:16,370 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:06:16,371 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:06:16,371 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:06:16,371 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:06:16,372 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:06:16,373 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:06:16,373 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:06:16,373 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:06:16,374 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:06:16,374 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:06:16,374 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:06:16,374 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:06:16,375 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:06:16,375 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 02:06:16,375 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 02:06:16,376 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:06:16,376 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:06:16,376 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:06:16,377 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:06:16,377 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:06:16,377 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 02:06:16,377 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:06:16,378 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:06:16,378 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:06:16,378 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:06:16,379 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:06:16,379 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 02:06:16,379 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 02:06:16,380 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:06:16,380 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:06:16,380 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:06:16,381 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_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9668b946af76644b8fa4631a2788ccda3020fa9d [2021-10-16 02:06:16,912 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:06:16,942 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:06:16,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:06:16,947 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:06:16,948 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:06:16,949 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound1.c [2021-10-16 02:06:17,053 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/data/20b87ec91/addc6559c99e4b4e976631fbaeec9c68/FLAG2ef70fab1 [2021-10-16 02:06:17,668 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:06:17,669 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound1.c [2021-10-16 02:06:17,680 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/data/20b87ec91/addc6559c99e4b4e976631fbaeec9c68/FLAG2ef70fab1 [2021-10-16 02:06:18,000 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/data/20b87ec91/addc6559c99e4b4e976631fbaeec9c68 [2021-10-16 02:06:18,003 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:06:18,005 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:06:18,007 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:06:18,007 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:06:18,014 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:06:18,015 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:06:18" (1/1) ... [2021-10-16 02:06:18,017 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54557926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:18, skipping insertion in model container [2021-10-16 02:06:18,017 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:06:18" (1/1) ... [2021-10-16 02:06:18,027 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:06:18,044 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:06:18,210 WARN L228 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_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound1.c[458,471] [2021-10-16 02:06:18,231 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:06:18,249 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:06:18,272 WARN L228 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_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound1.c[458,471] [2021-10-16 02:06:18,307 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:06:18,329 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:06:18,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:18 WrapperNode [2021-10-16 02:06:18,333 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:06:18,335 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:06:18,337 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:06:18,338 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:06:18,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:18" (1/1) ... [2021-10-16 02:06:18,408 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:18" (1/1) ... [2021-10-16 02:06:18,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:06:18,450 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:06:18,450 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:06:18,450 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:06:18,461 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:18" (1/1) ... [2021-10-16 02:06:18,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:18" (1/1) ... [2021-10-16 02:06:18,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:18" (1/1) ... [2021-10-16 02:06:18,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:18" (1/1) ... [2021-10-16 02:06:18,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:18" (1/1) ... [2021-10-16 02:06:18,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:18" (1/1) ... [2021-10-16 02:06:18,507 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:18" (1/1) ... [2021-10-16 02:06:18,511 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:06:18,518 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:06:18,518 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:06:18,518 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:06:18,519 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:18" (1/1) ... [2021-10-16 02:06:18,528 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:06:18,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:06:18,556 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:06:18,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:06:18,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 02:06:18,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:06:18,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:06:18,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:06:19,958 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:06:19,959 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-10-16 02:06:19,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:06:19 BoogieIcfgContainer [2021-10-16 02:06:19,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:06:19,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:06:19,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:06:19,968 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:06:19,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:06:18" (1/3) ... [2021-10-16 02:06:19,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a4d9939 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:06:19, skipping insertion in model container [2021-10-16 02:06:19,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:18" (2/3) ... [2021-10-16 02:06:19,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a4d9939 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:06:19, skipping insertion in model container [2021-10-16 02:06:19,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:06:19" (3/3) ... [2021-10-16 02:06:19,973 INFO L111 eAbstractionObserver]: Analyzing ICFG ps4-ll_valuebound1.c [2021-10-16 02:06:19,980 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:06:19,980 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-16 02:06:20,043 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:06:20,051 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 02:06:20,052 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-16 02:06:20,070 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 17 states have (on average 1.588235294117647) internal successors, (27), 20 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:06:20,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-16 02:06:20,077 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:06:20,078 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:06:20,079 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:06:20,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:06:20,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1804972333, now seen corresponding path program 1 times [2021-10-16 02:06:20,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:06:20,102 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [182816136] [2021-10-16 02:06:20,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:06:20,103 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:06:20,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:06:20,107 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:06:20,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 02:06:20,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:06:20,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-16 02:06:20,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:06:20,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:06:20,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:06:20,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:06:20,451 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:06:20,452 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [182816136] [2021-10-16 02:06:20,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [182816136] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:06:20,454 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:06:20,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-16 02:06:20,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209442747] [2021-10-16 02:06:20,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 02:06:20,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:06:20,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 02:06:20,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:06:20,481 INFO L87 Difference]: Start difference. First operand has 21 states, 17 states have (on average 1.588235294117647) internal successors, (27), 20 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:06:20,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:06:20,501 INFO L93 Difference]: Finished difference Result 39 states and 50 transitions. [2021-10-16 02:06:20,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 02:06:20,502 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-16 02:06:20,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:06:20,512 INFO L225 Difference]: With dead ends: 39 [2021-10-16 02:06:20,512 INFO L226 Difference]: Without dead ends: 17 [2021-10-16 02:06:20,516 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:06:20,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-16 02:06:20,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-10-16 02:06:20,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:06:20,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2021-10-16 02:06:20,556 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 7 [2021-10-16 02:06:20,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:06:20,557 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2021-10-16 02:06:20,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:06:20,558 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2021-10-16 02:06:20,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-16 02:06:20,558 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:06:20,559 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:06:20,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:06:20,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:06:20,782 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:06:20,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:06:20,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1806819375, now seen corresponding path program 1 times [2021-10-16 02:06:20,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:06:20,784 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [211066144] [2021-10-16 02:06:20,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:06:20,785 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:06:20,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:06:20,787 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:06:20,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-16 02:06:21,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:06:21,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-16 02:06:21,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:06:21,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:06:21,294 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:06:25,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:06:25,335 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:06:25,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [211066144] [2021-10-16 02:06:25,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [211066144] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:06:25,336 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:06:25,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-16 02:06:25,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145054177] [2021-10-16 02:06:25,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:06:25,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:06:25,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:06:25,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:06:25,341 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:06:39,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:06:39,779 INFO L93 Difference]: Finished difference Result 40 states and 42 transitions. [2021-10-16 02:06:39,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 02:06:39,780 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-16 02:06:39,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:06:39,781 INFO L225 Difference]: With dead ends: 40 [2021-10-16 02:06:39,782 INFO L226 Difference]: Without dead ends: 28 [2021-10-16 02:06:39,783 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 10296.2ms TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-10-16 02:06:39,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-10-16 02:06:39,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 25. [2021-10-16 02:06:39,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 24 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:06:39,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2021-10-16 02:06:39,803 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 7 [2021-10-16 02:06:39,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:06:39,817 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2021-10-16 02:06:39,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:06:39,818 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2021-10-16 02:06:39,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-16 02:06:39,819 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:06:39,819 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1] [2021-10-16 02:06:39,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-16 02:06:40,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:06:40,021 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:06:40,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:06:40,022 INFO L82 PathProgramCache]: Analyzing trace with hash -2052598129, now seen corresponding path program 1 times [2021-10-16 02:06:40,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:06:40,023 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2093090296] [2021-10-16 02:06:40,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:06:40,024 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:06:40,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:06:40,026 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:06:40,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-16 02:06:40,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:06:40,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 02:06:40,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:06:41,359 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:06:41,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:06:41,971 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:06:41,971 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:06:41,972 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2093090296] [2021-10-16 02:06:41,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2093090296] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-16 02:06:41,973 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-16 02:06:41,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2021-10-16 02:06:41,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762632978] [2021-10-16 02:06:41,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:06:41,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:06:41,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:06:41,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-10-16 02:06:41,981 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:06:42,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:06:42,826 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2021-10-16 02:06:42,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 02:06:42,841 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-16 02:06:42,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:06:42,842 INFO L225 Difference]: With dead ends: 27 [2021-10-16 02:06:42,842 INFO L226 Difference]: Without dead ends: 14 [2021-10-16 02:06:42,842 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 699.7ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-10-16 02:06:42,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-10-16 02:06:42,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-10-16 02:06:42,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0) internal successors, (13), 13 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:06:42,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2021-10-16 02:06:42,848 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 13 [2021-10-16 02:06:42,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:06:42,849 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2021-10-16 02:06:42,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:06:42,849 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2021-10-16 02:06:42,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-16 02:06:42,850 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:06:42,850 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:06:42,881 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-16 02:06:43,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:06:43,065 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:06:43,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:06:43,066 INFO L82 PathProgramCache]: Analyzing trace with hash -2052638844, now seen corresponding path program 1 times [2021-10-16 02:06:43,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:06:43,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [600254003] [2021-10-16 02:06:43,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:06:43,067 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:06:43,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:06:43,069 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:06:43,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-16 02:06:43,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:06:43,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-16 02:06:43,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:06:44,253 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:06:44,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:06:54,259 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:06:54,260 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:06:54,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [600254003] [2021-10-16 02:06:54,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [600254003] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:06:54,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [817931527] [2021-10-16 02:06:54,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:06:54,262 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:06:54,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:06:54,270 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:06:54,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2021-10-16 02:06:54,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:06:54,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-16 02:06:54,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:06:55,648 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:06:55,648 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:07:05,887 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:07:05,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [817931527] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:07:05,887 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [598789404] [2021-10-16 02:07:05,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:07:05,888 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:07:05,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:07:05,890 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:07:05,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-16 02:07:06,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:07:06,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-16 02:07:06,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:07:06,811 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:07:06,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:07:11,186 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:07:11,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [598789404] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:07:11,186 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 02:07:11,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 6, 6, 7, 7] total 16 [2021-10-16 02:07:11,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879583330] [2021-10-16 02:07:11,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-16 02:07:11,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:07:11,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-16 02:07:11,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2021-10-16 02:07:11,190 INFO L87 Difference]: Start difference. First operand 14 states and 13 transitions. Second operand has 16 states, 16 states have (on average 2.5) internal successors, (40), 16 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:07:16,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:07:16,032 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2021-10-16 02:07:16,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 02:07:16,032 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.5) internal successors, (40), 16 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-16 02:07:16,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:07:16,033 INFO L225 Difference]: With dead ends: 14 [2021-10-16 02:07:16,033 INFO L226 Difference]: Without dead ends: 0 [2021-10-16 02:07:16,034 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 14911.0ms TimeCoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2021-10-16 02:07:16,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-16 02:07:16,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-16 02:07:16,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:07:16,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-16 02:07:16,036 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-10-16 02:07:16,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:07:16,037 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-16 02:07:16,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.5) internal successors, (40), 16 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:07:16,037 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-16 02:07:16,038 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-16 02:07:16,041 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:07:16,042 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:07:16,043 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:07:16,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-10-16 02:07:16,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2021-10-16 02:07:16,502 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-10-16 02:07:16,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:07:16,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-16 02:07:16,662 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:07:16,727 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:07:16,728 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:07:16,733 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:07:16,754 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:07:28,617 INFO L853 garLoopResultBuilder]: At program point L27-2(lines 27 36) the Hoare annotation is: (let ((.cse2 ((_ sign_extend 16) ULTIMATE.start_main_~k~0))) (let ((.cse1 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse3 (bvsle .cse2 (_ bv1 32))) (.cse0 ((_ sign_extend 32) (_ bv0 32)))) (or (and (= .cse0 ULTIMATE.start_main_~y~0) (= .cse0 ULTIMATE.start_main_~c~0) (= .cse0 ULTIMATE.start_main_~x~0) .cse1 (bvsge .cse2 (_ bv0 32)) .cse3) (let ((.cse4 (bvadd .cse0 ((_ sign_extend 32) (_ bv1 32))))) (and (= ULTIMATE.start_main_~y~0 .cse4) .cse1 (= ULTIMATE.start_main_~c~0 .cse4) (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32)) .cse3 (bvslt .cse0 ((_ sign_extend 32) .cse2)) (= .cse0 (let ((.cse5 (bvmul ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) (bvadd (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 .cse5) (bvneg (bvmul (bvmul .cse5 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~y~0)) (bvmul ((_ sign_extend 32) (_ bv4 32)) ULTIMATE.start_main_~x~0))))))))) [2021-10-16 02:07:28,617 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2021-10-16 02:07:28,617 INFO L857 garLoopResultBuilder]: For program point L27-3(lines 27 36) no Hoare annotation was computed. [2021-10-16 02:07:28,617 INFO L857 garLoopResultBuilder]: For program point L11(lines 11 12) no Hoare annotation was computed. [2021-10-16 02:07:28,618 INFO L857 garLoopResultBuilder]: For program point L11-1(lines 11 12) no Hoare annotation was computed. [2021-10-16 02:07:28,618 INFO L857 garLoopResultBuilder]: For program point L11-2(lines 11 12) no Hoare annotation was computed. [2021-10-16 02:07:28,618 INFO L857 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2021-10-16 02:07:28,618 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-16 02:07:28,618 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-16 02:07:28,618 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-16 02:07:28,619 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2021-10-16 02:07:28,619 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-16 02:07:28,619 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2021-10-16 02:07:28,619 INFO L857 garLoopResultBuilder]: For program point L10(lines 10 13) no Hoare annotation was computed. [2021-10-16 02:07:28,620 INFO L853 garLoopResultBuilder]: At program point L10-2(lines 30 31) the Hoare annotation is: (let ((.cse2 ((_ sign_extend 16) ULTIMATE.start_main_~k~0))) (let ((.cse1 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse3 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse4 (bvsle .cse2 (_ bv1 32))) (.cse0 ((_ sign_extend 32) (_ bv0 32)))) (or (and (= .cse0 ULTIMATE.start_main_~y~0) (= .cse0 ULTIMATE.start_main_~c~0) (= .cse0 ULTIMATE.start_main_~x~0) .cse1 (bvsge .cse2 (_ bv0 32)) .cse3 .cse4) (let ((.cse5 (bvadd .cse0 ((_ sign_extend 32) (_ bv1 32))))) (and (= ULTIMATE.start_main_~y~0 .cse5) .cse1 (= ULTIMATE.start_main_~c~0 .cse5) .cse3 .cse4 (bvslt .cse0 ((_ sign_extend 32) .cse2)) (= .cse0 (let ((.cse6 (bvmul ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) (bvadd (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 .cse6) (bvneg (bvmul (bvmul .cse6 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~y~0)) (bvmul ((_ sign_extend 32) (_ bv4 32)) ULTIMATE.start_main_~x~0))))))))) [2021-10-16 02:07:28,620 INFO L857 garLoopResultBuilder]: For program point L10-3(lines 10 13) no Hoare annotation was computed. [2021-10-16 02:07:28,620 INFO L860 garLoopResultBuilder]: At program point L39(lines 17 40) the Hoare annotation is: true [2021-10-16 02:07:28,620 INFO L857 garLoopResultBuilder]: For program point L6(lines 6 8) no Hoare annotation was computed. [2021-10-16 02:07:28,620 INFO L853 garLoopResultBuilder]: At program point L10-5(lines 9 15) the Hoare annotation is: (and (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (= ((_ sign_extend 32) (_ bv0 32)) (let ((.cse0 (bvmul ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) (bvadd (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 .cse0) (bvneg (bvmul (bvmul .cse0 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~y~0)) (bvmul ((_ sign_extend 32) (_ bv4 32)) ULTIMATE.start_main_~x~0))))) [2021-10-16 02:07:28,620 INFO L857 garLoopResultBuilder]: For program point L10-6(lines 10 13) no Hoare annotation was computed. [2021-10-16 02:07:28,621 INFO L860 garLoopResultBuilder]: At program point L10-8(lines 9 15) the Hoare annotation is: true [2021-10-16 02:07:28,626 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:07:28,633 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.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:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:139) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:452) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) 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) [2021-10-16 02:07:28,646 INFO L168 Benchmark]: Toolchain (without parser) took 70639.65 ms. Allocated memory was 69.2 MB in the beginning and 90.2 MB in the end (delta: 21.0 MB). Free memory was 51.8 MB in the beginning and 47.6 MB in the end (delta: 4.3 MB). Peak memory consumption was 24.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:07:28,647 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 69.2 MB. Free memory was 51.0 MB in the beginning and 51.0 MB in the end (delta: 54.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:07:28,648 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.16 ms. Allocated memory is still 69.2 MB. Free memory was 51.6 MB in the beginning and 41.3 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:07:28,649 INFO L168 Benchmark]: Boogie Procedure Inliner took 113.41 ms. Allocated memory is still 69.2 MB. Free memory was 41.2 MB in the beginning and 53.0 MB in the end (delta: -11.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:07:28,649 INFO L168 Benchmark]: Boogie Preprocessor took 67.23 ms. Allocated memory is still 69.2 MB. Free memory was 53.0 MB in the beginning and 51.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:07:28,650 INFO L168 Benchmark]: RCFGBuilder took 1444.13 ms. Allocated memory is still 69.2 MB. Free memory was 51.7 MB in the beginning and 41.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:07:28,656 INFO L168 Benchmark]: TraceAbstraction took 68680.01 ms. Allocated memory was 69.2 MB in the beginning and 90.2 MB in the end (delta: 21.0 MB). Free memory was 41.2 MB in the beginning and 47.6 MB in the end (delta: -6.4 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. [2021-10-16 02:07:28,663 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 69.2 MB. Free memory was 51.0 MB in the beginning and 51.0 MB in the end (delta: 54.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 327.16 ms. Allocated memory is still 69.2 MB. Free memory was 51.6 MB in the beginning and 41.3 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 113.41 ms. Allocated memory is still 69.2 MB. Free memory was 41.2 MB in the beginning and 53.0 MB in the end (delta: -11.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 67.23 ms. Allocated memory is still 69.2 MB. Free memory was 53.0 MB in the beginning and 51.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1444.13 ms. Allocated memory is still 69.2 MB. Free memory was 51.7 MB in the beginning and 41.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 68680.01 ms. Allocated memory was 69.2 MB in the beginning and 90.2 MB in the end (delta: 21.0 MB). Free memory was 41.2 MB in the beginning and 47.6 MB in the end (delta: -6.4 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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 - PositiveResult [Line: 12]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 68586.0ms, OverallIterations: 4, TraceHistogramMax: 3, EmptinessCheckTime: 15.0ms, AutomataDifference: 20210.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 11958.3ms, InitialAbstractionConstructionTime: 12.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 46 SDtfs, 44 SDslu, 59 SDs, 0 SdLazy, 76 SolverSat, 37 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 9311.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 131 GetRequests, 93 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 25907.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=2, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 47.5ms AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 13 NumberOfFragments, 209 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 93.3ms HoareSimplificationTime, 5 FomulaSimplificationsInter, 109 FormulaSimplificationTreeSizeReductionInter, 11857.6ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 83.5ms SsaConstructionTime, 2116.0ms SatisfiabilityAnalysisTime, 32348.8ms InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 120 ConstructedInterpolants, 3 QuantifiedInterpolants, 1409 SizeOfPredicates, 21 NumberOfNonLiveVariables, 239 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 12 InterpolantComputations, 5 PerfectInterpolantSequences, 11/32 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 - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - 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. [2021-10-16 02:07:28,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1da0d19-e68e-4ebb-8d34-b4362ccd496e/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...