./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f254be-d9a7-4e41-a3dc-97808f8f985b/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f254be-d9a7-4e41-a3dc-97808f8f985b/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f254be-d9a7-4e41-a3dc-97808f8f985b/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f254be-d9a7-4e41-a3dc-97808f8f985b/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f254be-d9a7-4e41-a3dc-97808f8f985b/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f254be-d9a7-4e41-a3dc-97808f8f985b/bin/utaipan-q2qaUkNPG8 --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 331cd263c474a506c65c04d2df5592f079677e1c ........................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 08:11:01,380 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 08:11:01,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 08:11:01,422 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 08:11:01,423 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 08:11:01,424 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 08:11:01,427 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 08:11:01,430 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 08:11:01,433 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 08:11:01,434 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 08:11:01,436 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 08:11:01,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 08:11:01,438 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 08:11:01,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 08:11:01,442 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 08:11:01,444 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 08:11:01,445 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 08:11:01,447 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 08:11:01,450 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 08:11:01,453 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 08:11:01,455 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 08:11:01,457 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 08:11:01,459 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 08:11:01,461 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 08:11:01,471 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 08:11:01,471 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 08:11:01,472 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 08:11:01,473 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 08:11:01,474 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 08:11:01,475 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 08:11:01,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 08:11:01,477 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 08:11:01,478 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 08:11:01,479 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 08:11:01,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 08:11:01,481 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 08:11:01,482 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 08:11:01,482 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 08:11:01,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 08:11:01,489 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 08:11:01,491 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 08:11:01,492 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f254be-d9a7-4e41-a3dc-97808f8f985b/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 08:11:01,538 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 08:11:01,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 08:11:01,539 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 08:11:01,539 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 08:11:01,540 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 08:11:01,540 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 08:11:01,540 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 08:11:01,540 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 08:11:01,541 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 08:11:01,541 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 08:11:01,541 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 08:11:01,541 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 08:11:01,542 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 08:11:01,542 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 08:11:01,542 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 08:11:01,543 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 08:11:01,543 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 08:11:01,543 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 08:11:01,544 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 08:11:01,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 08:11:01,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 08:11:01,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 08:11:01,544 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 08:11:01,545 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 08:11:01,545 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 08:11:01,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 08:11:01,545 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 08:11:01,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 08:11:01,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 08:11:01,546 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 08:11:01,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 08:11:01,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 08:11:01,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 08:11:01,547 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 08:11:01,548 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 08:11:01,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 08:11:01,548 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 08:11:01,548 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 08:11:01,549 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 08:11:01,549 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_a9f254be-d9a7-4e41-a3dc-97808f8f985b/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f254be-d9a7-4e41-a3dc-97808f8f985b/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 331cd263c474a506c65c04d2df5592f079677e1c [2021-10-13 08:11:01,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 08:11:01,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 08:11:01,863 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 08:11:01,864 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 08:11:01,865 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 08:11:01,866 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f254be-d9a7-4e41-a3dc-97808f8f985b/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound1.c [2021-10-13 08:11:01,937 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f254be-d9a7-4e41-a3dc-97808f8f985b/bin/utaipan-q2qaUkNPG8/data/81429c11b/4e2cdd9f2b874625b27677c2cf4215e8/FLAGa0d4a28ee [2021-10-13 08:11:02,436 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 08:11:02,437 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f254be-d9a7-4e41-a3dc-97808f8f985b/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound1.c [2021-10-13 08:11:02,444 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f254be-d9a7-4e41-a3dc-97808f8f985b/bin/utaipan-q2qaUkNPG8/data/81429c11b/4e2cdd9f2b874625b27677c2cf4215e8/FLAGa0d4a28ee [2021-10-13 08:11:02,774 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f254be-d9a7-4e41-a3dc-97808f8f985b/bin/utaipan-q2qaUkNPG8/data/81429c11b/4e2cdd9f2b874625b27677c2cf4215e8 [2021-10-13 08:11:02,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 08:11:02,786 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 08:11:02,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 08:11:02,790 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 08:11:02,793 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 08:11:02,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:11:02" (1/1) ... [2021-10-13 08:11:02,796 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a536176 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:11:02, skipping insertion in model container [2021-10-13 08:11:02,796 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:11:02" (1/1) ... [2021-10-13 08:11:02,805 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 08:11:02,838 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 08:11:03,086 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_a9f254be-d9a7-4e41-a3dc-97808f8f985b/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound1.c[535,548] [2021-10-13 08:11:03,117 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:11:03,126 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 08:11:03,138 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_a9f254be-d9a7-4e41-a3dc-97808f8f985b/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound1.c[535,548] [2021-10-13 08:11:03,148 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:11:03,162 INFO L208 MainTranslator]: Completed translation [2021-10-13 08:11:03,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:11:03 WrapperNode [2021-10-13 08:11:03,162 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 08:11:03,164 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 08:11:03,164 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 08:11:03,164 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 08:11:03,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:11:03" (1/1) ... [2021-10-13 08:11:03,179 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:11:03" (1/1) ... [2021-10-13 08:11:03,202 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 08:11:03,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 08:11:03,203 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 08:11:03,203 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 08:11:03,211 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:11:03" (1/1) ... [2021-10-13 08:11:03,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:11:03" (1/1) ... [2021-10-13 08:11:03,214 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:11:03" (1/1) ... [2021-10-13 08:11:03,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:11:03" (1/1) ... [2021-10-13 08:11:03,219 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:11:03" (1/1) ... [2021-10-13 08:11:03,224 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:11:03" (1/1) ... [2021-10-13 08:11:03,226 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:11:03" (1/1) ... [2021-10-13 08:11:03,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 08:11:03,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 08:11:03,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 08:11:03,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 08:11:03,230 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:11:03" (1/1) ... [2021-10-13 08:11:03,245 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 08:11:03,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f254be-d9a7-4e41-a3dc-97808f8f985b/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:11:03,268 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f254be-d9a7-4e41-a3dc-97808f8f985b/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 08:11:03,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f254be-d9a7-4e41-a3dc-97808f8f985b/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 08:11:03,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 08:11:03,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 08:11:03,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 08:11:03,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 08:11:03,842 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 08:11:03,843 INFO L299 CfgBuilder]: Removed 23 assume(true) statements. [2021-10-13 08:11:03,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:11:03 BoogieIcfgContainer [2021-10-13 08:11:03,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 08:11:03,848 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 08:11:03,848 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 08:11:03,852 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 08:11:03,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:11:02" (1/3) ... [2021-10-13 08:11:03,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@465f37e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:11:03, skipping insertion in model container [2021-10-13 08:11:03,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:11:03" (2/3) ... [2021-10-13 08:11:03,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@465f37e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:11:03, skipping insertion in model container [2021-10-13 08:11:03,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:11:03" (3/3) ... [2021-10-13 08:11:03,856 INFO L111 eAbstractionObserver]: Analyzing ICFG fermat1-ll_valuebound1.c [2021-10-13 08:11:03,862 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 08:11:03,863 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-10-13 08:11:03,913 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 08:11:03,921 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 [2021-10-13 08:11:03,921 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-13 08:11:03,938 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 21 states have internal predecessors, (31), 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) [2021-10-13 08:11:03,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 08:11:03,944 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:11:03,945 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-13 08:11:03,946 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-10-13 08:11:03,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:11:03,952 INFO L82 PathProgramCache]: Analyzing trace with hash 5222459, now seen corresponding path program 1 times [2021-10-13 08:11:03,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 08:11:03,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500393495] [2021-10-13 08:11:03,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:11:03,965 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 08:11:04,072 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 08:11:04,072 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [439603401] [2021-10-13 08:11:04,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:11:04,073 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 08:11:04,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f254be-d9a7-4e41-a3dc-97808f8f985b/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:11:04,079 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f254be-d9a7-4e41-a3dc-97808f8f985b/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 08:11:04,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f254be-d9a7-4e41-a3dc-97808f8f985b/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 08:11:04,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:11:04,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-13 08:11:04,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:11:04,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:11:04,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:11:04,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:11:04,702 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 08:11:04,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500393495] [2021-10-13 08:11:04,704 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-13 08:11:04,705 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439603401] [2021-10-13 08:11:04,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [439603401] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:11:04,706 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:11:04,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 08:11:04,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37966639] [2021-10-13 08:11:04,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 08:11:04,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 08:11:04,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 08:11:04,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 08:11:04,737 INFO L87 Difference]: Start difference. First operand has 22 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 21 states have internal predecessors, (31), 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) [2021-10-13 08:11:04,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:11:04,845 INFO L93 Difference]: Finished difference Result 29 states and 41 transitions. [2021-10-13 08:11:04,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 08:11:04,849 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 [2021-10-13 08:11:04,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:11:04,855 INFO L225 Difference]: With dead ends: 29 [2021-10-13 08:11:04,856 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 08:11:04,859 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 71.9ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-13 08:11:04,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 08:11:04,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 08:11:04,883 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) [2021-10-13 08:11:04,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 08:11:04,885 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2021-10-13 08:11:04,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:11:04,886 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 08:11:04,886 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) [2021-10-13 08:11:04,886 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 08:11:04,886 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 08:11:04,889 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:11:04,890 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:11:04,890 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:11:04,891 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:11:04,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f254be-d9a7-4e41-a3dc-97808f8f985b/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 08:11:05,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f254be-d9a7-4e41-a3dc-97808f8f985b/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-10-13 08:11:05,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 08:11:05,117 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:11:05,125 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:11:05,130 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:11:05,131 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:11:05,132 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:11:05,137 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:11:05,193 INFO L857 garLoopResultBuilder]: For program point L35-2(lines 35 55) no Hoare annotation was computed. [2021-10-13 08:11:05,194 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-13 08:11:05,205 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 08:11:05,205 INFO L857 garLoopResultBuilder]: For program point L12(lines 12 15) no Hoare annotation was computed. [2021-10-13 08:11:05,206 INFO L853 garLoopResultBuilder]: At program point L12-2(lines 37 38) the Hoare annotation is: (let ((.cse1 (div (+ (* ULTIMATE.start_main_~u~0 (- 1)) 1) (- 2)))) (let ((.cse0 (* .cse1 .cse1))) (and (= (+ ULTIMATE.start_main_~A~0 ULTIMATE.start_main_~r~0) .cse0) (= (mod (+ ULTIMATE.start_main_~u~0 1) (- 2)) 0) (= ULTIMATE.start_main_~v~0 1) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< (+ 1 .cse0) (+ ULTIMATE.start_main_~A~0 (* 2 .cse1))) (<= ULTIMATE.start_main_~A~0 1)))) [2021-10-13 08:11:05,206 INFO L857 garLoopResultBuilder]: For program point L12-3(lines 12 15) no Hoare annotation was computed. [2021-10-13 08:11:05,206 INFO L853 garLoopResultBuilder]: At program point L12-5(lines 42 43) the Hoare annotation is: false [2021-10-13 08:11:05,206 INFO L857 garLoopResultBuilder]: For program point L12-6(lines 12 15) no Hoare annotation was computed. [2021-10-13 08:11:05,207 INFO L853 garLoopResultBuilder]: At program point L12-8(lines 50 51) the Hoare annotation is: false [2021-10-13 08:11:05,207 INFO L857 garLoopResultBuilder]: For program point L12-9(lines 12 15) no Hoare annotation was computed. [2021-10-13 08:11:05,208 INFO L853 garLoopResultBuilder]: At program point L12-11(lines 11 17) the Hoare annotation is: (let ((.cse1 (div (+ (* ULTIMATE.start_main_~u~0 (- 1)) 1) (- 2)))) (let ((.cse0 (* .cse1 .cse1))) (and (= (+ ULTIMATE.start_main_~A~0 ULTIMATE.start_main_~r~0) .cse0) (= (mod (+ ULTIMATE.start_main_~u~0 1) (- 2)) 0) (= ULTIMATE.start_main_~v~0 1) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< (+ 1 .cse0) (+ ULTIMATE.start_main_~A~0 (* 2 .cse1))) (<= ULTIMATE.start_main_~A~0 1)))) [2021-10-13 08:11:05,208 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-13 08:11:05,208 INFO L857 garLoopResultBuilder]: For program point L13(lines 13 14) no Hoare annotation was computed. [2021-10-13 08:11:05,208 INFO L857 garLoopResultBuilder]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2021-10-13 08:11:05,209 INFO L857 garLoopResultBuilder]: For program point L13-2(lines 13 14) no Hoare annotation was computed. [2021-10-13 08:11:05,210 INFO L857 garLoopResultBuilder]: For program point L13-3(lines 13 14) no Hoare annotation was computed. [2021-10-13 08:11:05,210 INFO L857 garLoopResultBuilder]: For program point L48-1(lines 35 55) no Hoare annotation was computed. [2021-10-13 08:11:05,210 INFO L853 garLoopResultBuilder]: At program point L48-2(lines 35 55) the Hoare annotation is: (let ((.cse1 (div (+ (* ULTIMATE.start_main_~u~0 (- 1)) 1) (- 2)))) (let ((.cse0 (* .cse1 .cse1))) (and (= (+ ULTIMATE.start_main_~A~0 ULTIMATE.start_main_~r~0) .cse0) (= (mod (+ ULTIMATE.start_main_~u~0 1) (- 2)) 0) (= ULTIMATE.start_main_~v~0 1) (< (+ 1 .cse0) (+ ULTIMATE.start_main_~A~0 (* 2 .cse1))) (<= ULTIMATE.start_main_~A~0 1)))) [2021-10-13 08:11:05,211 INFO L853 garLoopResultBuilder]: At program point L40-2(lines 40 46) the Hoare annotation is: false [2021-10-13 08:11:05,211 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-13 08:11:05,212 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 08:11:05,213 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-13 08:11:05,222 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 08:11:05,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 08:11:05 BoogieIcfgContainer [2021-10-13 08:11:05,257 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 08:11:05,258 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 08:11:05,258 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 08:11:05,258 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 08:11:05,258 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:11:03" (3/4) ... [2021-10-13 08:11:05,261 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 08:11:05,278 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2021-10-13 08:11:05,285 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-13 08:11:05,286 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-13 08:11:05,286 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 08:11:05,344 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f254be-d9a7-4e41-a3dc-97808f8f985b/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 08:11:05,344 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 08:11:05,346 INFO L168 Benchmark]: Toolchain (without parser) took 2559.59 ms. Allocated memory was 90.2 MB in the beginning and 115.3 MB in the end (delta: 25.2 MB). Free memory was 53.5 MB in the beginning and 86.5 MB in the end (delta: -33.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:11:05,347 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 90.2 MB. Free memory is still 69.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:11:05,348 INFO L168 Benchmark]: CACSL2BoogieTranslator took 373.82 ms. Allocated memory was 90.2 MB in the beginning and 115.3 MB in the end (delta: 25.2 MB). Free memory was 53.2 MB in the beginning and 90.8 MB in the end (delta: -37.5 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2021-10-13 08:11:05,348 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.19 ms. Allocated memory is still 115.3 MB. Free memory was 90.8 MB in the beginning and 89.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 08:11:05,349 INFO L168 Benchmark]: Boogie Preprocessor took 25.74 ms. Allocated memory is still 115.3 MB. Free memory was 89.0 MB in the beginning and 87.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 08:11:05,349 INFO L168 Benchmark]: RCFGBuilder took 617.00 ms. Allocated memory is still 115.3 MB. Free memory was 87.8 MB in the beginning and 70.4 MB in the end (delta: 17.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-13 08:11:05,350 INFO L168 Benchmark]: TraceAbstraction took 1409.12 ms. Allocated memory is still 115.3 MB. Free memory was 69.9 MB in the beginning and 89.7 MB in the end (delta: -19.8 MB). Peak memory consumption was 17.7 MB. Max. memory is 16.1 GB. [2021-10-13 08:11:05,351 INFO L168 Benchmark]: Witness Printer took 87.14 ms. Allocated memory is still 115.3 MB. Free memory was 89.7 MB in the beginning and 86.5 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 08:11:05,353 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 90.2 MB. Free memory is still 69.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 373.82 ms. Allocated memory was 90.2 MB in the beginning and 115.3 MB in the end (delta: 25.2 MB). Free memory was 53.2 MB in the beginning and 90.8 MB in the end (delta: -37.5 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.19 ms. Allocated memory is still 115.3 MB. Free memory was 90.8 MB in the beginning and 89.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.74 ms. Allocated memory is still 115.3 MB. Free memory was 89.0 MB in the beginning and 87.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 617.00 ms. Allocated memory is still 115.3 MB. Free memory was 87.8 MB in the beginning and 70.4 MB in the end (delta: 17.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1409.12 ms. Allocated memory is still 115.3 MB. Free memory was 69.9 MB in the beginning and 89.7 MB in the end (delta: -19.8 MB). Peak memory consumption was 17.7 MB. Max. memory is 16.1 GB. * Witness Printer took 87.14 ms. Allocated memory is still 115.3 MB. Free memory was 89.7 MB in the beginning and 86.5 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 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: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: 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, 22 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1311.3ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 10.5ms, AutomataDifference: 140.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 81.1ms, InitialAbstractionConstructionTime: 11.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2 SDtfs, 9 SDslu, 1 SDs, 0 SdLazy, 5 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 59.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 71.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 10.3ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 9 NumberOfFragments, 195 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 22.0ms HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 51.5ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 14.5ms SsaConstructionTime, 34.8ms SatisfiabilityAnalysisTime, 536.2ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 91 SizeOfPredicates, 6 NumberOfNonLiveVariables, 56 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: ((((A + r == (u * -1 + 1) / -2 * ((u * -1 + 1) / -2) && (u + 1) % -2 == 0) && v == 1) && 1 <= cond) && 1 + (u * -1 + 1) / -2 * ((u * -1 + 1) / -2) < A + 2 * ((u * -1 + 1) / -2)) && A <= 1 - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: (((A + r == (u * -1 + 1) / -2 * ((u * -1 + 1) / -2) && (u + 1) % -2 == 0) && v == 1) && 1 + (u * -1 + 1) / -2 * ((u * -1 + 1) / -2) < A + 2 * ((u * -1 + 1) / -2)) && A <= 1 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: ((((A + r == (u * -1 + 1) / -2 * ((u * -1 + 1) / -2) && (u + 1) % -2 == 0) && v == 1) && 1 <= cond) && 1 + (u * -1 + 1) / -2 * ((u * -1 + 1) / -2) < A + 2 * ((u * -1 + 1) / -2)) && A <= 1 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-10-13 08:11:05,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f254be-d9a7-4e41-a3dc-97808f8f985b/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...