./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG --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 7921702b8cbecd5225031321150d70ea7b40d7d08ee6ac9909ff47d4f7b99139 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:39:33,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:39:33,810 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:39:33,839 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:39:33,839 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:39:33,841 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:39:33,843 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:39:33,845 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:39:33,848 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:39:33,849 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:39:33,850 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:39:33,851 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:39:33,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:39:33,853 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:39:33,855 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:39:33,856 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:39:33,858 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:39:33,859 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:39:33,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:39:33,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:39:33,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:39:33,867 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:39:33,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:39:33,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:39:33,873 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:39:33,874 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:39:33,875 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:39:33,876 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:39:33,876 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:39:33,878 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:39:33,878 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:39:33,879 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:39:33,880 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:39:33,881 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:39:33,882 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:39:33,883 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:39:33,883 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:39:33,884 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:39:33,884 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:39:33,885 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:39:33,886 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:39:33,887 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 04:39:33,909 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:39:33,910 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:39:33,910 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:39:33,911 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:39:33,911 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:39:33,911 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:39:33,911 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 04:39:33,912 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:39:33,912 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:39:33,912 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 04:39:33,912 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 04:39:33,912 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:39:33,913 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 04:39:33,913 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 04:39:33,913 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 04:39:33,914 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:39:33,914 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:39:33,914 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:39:33,914 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:39:33,915 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:39:33,915 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:39:33,915 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:39:33,915 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:39:33,915 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:39:33,916 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:39:33,916 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:39:33,916 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:39:33,916 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:39:33,917 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:39:33,917 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:39:33,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:39:33,918 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:39:33,918 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:39:33,918 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:39:33,918 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 04:39:33,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:39:33,919 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:39:33,919 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:39:33,919 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:39:33,919 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_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7921702b8cbecd5225031321150d70ea7b40d7d08ee6ac9909ff47d4f7b99139 [2021-10-29 04:39:34,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:39:34,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:39:34,184 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:39:34,185 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:39:34,186 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:39:34,187 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound20.c [2021-10-29 04:39:34,262 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/data/f6e1c3de7/830163871cb94f65bd6c750bf951a4d1/FLAGa367789fe [2021-10-29 04:39:34,667 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:39:34,667 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound20.c [2021-10-29 04:39:34,673 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/data/f6e1c3de7/830163871cb94f65bd6c750bf951a4d1/FLAGa367789fe [2021-10-29 04:39:35,080 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/data/f6e1c3de7/830163871cb94f65bd6c750bf951a4d1 [2021-10-29 04:39:35,083 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:39:35,084 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:39:35,091 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:39:35,091 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:39:35,094 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:39:35,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:39:35" (1/1) ... [2021-10-29 04:39:35,096 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@797865e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:39:35, skipping insertion in model container [2021-10-29 04:39:35,096 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:39:35" (1/1) ... [2021-10-29 04:39:35,105 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:39:35,118 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:39:35,265 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_874097dc-efd0-4210-b58d-4ecc5ee09ccd/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound20.c[458,471] [2021-10-29 04:39:35,283 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:39:35,290 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:39:35,302 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_874097dc-efd0-4210-b58d-4ecc5ee09ccd/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound20.c[458,471] [2021-10-29 04:39:35,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:39:35,320 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:39:35,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:39:35 WrapperNode [2021-10-29 04:39:35,320 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:39:35,321 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:39:35,321 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:39:35,321 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:39:35,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:39:35" (1/1) ... [2021-10-29 04:39:35,333 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:39:35" (1/1) ... [2021-10-29 04:39:35,350 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:39:35,351 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:39:35,351 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:39:35,351 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:39:35,359 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:39:35" (1/1) ... [2021-10-29 04:39:35,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:39:35" (1/1) ... [2021-10-29 04:39:35,361 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:39:35" (1/1) ... [2021-10-29 04:39:35,361 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:39:35" (1/1) ... [2021-10-29 04:39:35,365 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:39:35" (1/1) ... [2021-10-29 04:39:35,369 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:39:35" (1/1) ... [2021-10-29 04:39:35,370 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:39:35" (1/1) ... [2021-10-29 04:39:35,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:39:35,373 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:39:35,373 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:39:35,373 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:39:35,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:39:35" (1/1) ... [2021-10-29 04:39:35,384 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:39:35,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:39:35,406 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:39:35,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:39:35,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 04:39:35,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:39:35,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:39:35,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:39:35,702 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:39:35,703 INFO L299 CfgBuilder]: Removed 15 assume(true) statements. [2021-10-29 04:39:35,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:39:35 BoogieIcfgContainer [2021-10-29 04:39:35,705 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:39:35,707 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:39:35,707 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:39:35,711 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:39:35,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:39:35" (1/3) ... [2021-10-29 04:39:35,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40c17ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:39:35, skipping insertion in model container [2021-10-29 04:39:35,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:39:35" (2/3) ... [2021-10-29 04:39:35,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40c17ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:39:35, skipping insertion in model container [2021-10-29 04:39:35,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:39:35" (3/3) ... [2021-10-29 04:39:35,714 INFO L111 eAbstractionObserver]: Analyzing ICFG ps5-ll_valuebound20.c [2021-10-29 04:39:35,719 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:39:35,720 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-29 04:39:35,764 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:39:35,771 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, mAutomataTypeConcurrency=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 [2021-10-29 04:39:35,771 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-29 04:39:35,785 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) [2021-10-29 04:39:35,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 04:39:35,789 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:39:35,790 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-29 04:39:35,791 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:39:35,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:39:35,796 INFO L85 PathProgramCache]: Analyzing trace with hash 3301933, now seen corresponding path program 1 times [2021-10-29 04:39:35,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:39:35,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034370005] [2021-10-29 04:39:35,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:39:35,812 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:39:35,943 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-29 04:39:35,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2022210717] [2021-10-29 04:39:35,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:39:35,946 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:39:35,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:39:35,949 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 04:39:35,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-29 04:39:36,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:39:36,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 04:39:36,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:39:36,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:39:36,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:39:36,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:39:36,256 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:39:36,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034370005] [2021-10-29 04:39:36,257 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 04:39:36,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2022210717] [2021-10-29 04:39:36,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2022210717] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:39:36,258 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:39:36,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-29 04:39:36,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847369312] [2021-10-29 04:39:36,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 04:39:36,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:39:36,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 04:39:36,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-29 04:39:36,280 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) [2021-10-29 04:39:38,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:39:38,498 INFO L93 Difference]: Finished difference Result 52 states and 69 transitions. [2021-10-29 04:39:38,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 04:39:38,500 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 [2021-10-29 04:39:38,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:39:38,506 INFO L225 Difference]: With dead ends: 52 [2021-10-29 04:39:38,506 INFO L226 Difference]: Without dead ends: 27 [2021-10-29 04:39:38,508 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-29 04:39:38,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-10-29 04:39:38,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 22. [2021-10-29 04:39:38,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 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) [2021-10-29 04:39:38,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2021-10-29 04:39:38,550 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 4 [2021-10-29 04:39:38,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:39:38,550 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2021-10-29 04:39:38,551 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) [2021-10-29 04:39:38,551 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2021-10-29 04:39:38,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 04:39:38,553 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:39:38,553 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2021-10-29 04:39:38,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-29 04:39:38,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-10-29 04:39:38,778 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:39:38,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:39:38,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1187658925, now seen corresponding path program 1 times [2021-10-29 04:39:38,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:39:38,780 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509969030] [2021-10-29 04:39:38,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:39:38,780 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:39:38,806 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-29 04:39:38,807 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1642959029] [2021-10-29 04:39:38,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:39:38,807 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:39:38,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:39:38,808 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 04:39:38,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-29 04:39:38,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:39:38,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-29 04:39:38,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:39:39,149 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:39:39,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:39:39,327 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 04:39:39,328 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:39:39,328 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509969030] [2021-10-29 04:39:39,328 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 04:39:39,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1642959029] [2021-10-29 04:39:39,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1642959029] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 04:39:39,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1838440077] [2021-10-29 04:39:39,366 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2021-10-29 04:39:39,366 INFO L166 IcfgInterpreter]: Building call graph [2021-10-29 04:39:39,375 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-29 04:39:39,382 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-29 04:39:39,382 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-29 04:39:39,442 INFO L180 QuantifierPusher]: treesize reduction 8, result has 95.1 percent of original size [2021-10-29 04:39:39,450 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:39:39,451 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:39:39,452 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-29 04:39:39,458 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:39:39,460 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:39:39,460 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-29 04:39:39,468 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 157 [2021-10-29 04:39:39,497 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_13|], 21=[|v_#valid_14|]} [2021-10-29 04:39:39,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:39:39,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:39:39,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:39:39,533 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 [2021-10-29 04:39:39,534 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:39:39,535 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 04:39:39,536 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:39:39,536 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 04:39:39,537 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 04:39:39,551 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-29 04:39:39,552 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:39:39,552 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-29 04:39:39,553 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:39:39,555 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-29 04:39:39,555 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 04:39:39,556 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:39:39,651 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:39:39,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:39:39,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:39:39,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:39:39,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:39:39,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:39:39,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:39:39,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:39:39,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:39:39,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:39:39,695 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-10-29 04:39:39,697 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:39:39,701 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 04:39:39,703 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:39:39,703 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 04:39:39,704 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-29 04:39:39,704 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:39:39,764 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:39:39,767 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.5 percent of original size [2021-10-29 04:39:39,781 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-10-29 04:39:39,782 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-29 04:39:39,782 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:290, output treesize:116 [2021-10-29 04:39:39,799 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:39:39,813 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 264 [2021-10-29 04:39:39,820 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:39:39,875 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:39:39,881 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:39:39,884 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:39:39,888 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:39:39,923 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:39:39,946 INFO L180 QuantifierPusher]: treesize reduction 54, result has 73.3 percent of original size [2021-10-29 04:39:39,960 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 200 [2021-10-29 04:39:39,976 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-29 04:39:40,771 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 04:39:40,771 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-29 04:39:40,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2021-10-29 04:39:40,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514901500] [2021-10-29 04:39:40,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-29 04:39:40,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:39:40,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-29 04:39:40,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2021-10-29 04:39:40,774 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) [2021-10-29 04:39:41,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:39:41,546 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2021-10-29 04:39:41,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-29 04:39:41,547 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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 10 [2021-10-29 04:39:41,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:39:41,554 INFO L225 Difference]: With dead ends: 35 [2021-10-29 04:39:41,554 INFO L226 Difference]: Without dead ends: 31 [2021-10-29 04:39:41,555 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-10-29 04:39:41,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-10-29 04:39:41,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 13. [2021-10-29 04:39:41,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 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) [2021-10-29 04:39:41,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-10-29 04:39:41,559 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2021-10-29 04:39:41,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:39:41,559 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-10-29 04:39:41,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) [2021-10-29 04:39:41,559 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-10-29 04:39:41,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 04:39:41,560 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:39:41,560 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:39:41,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-29 04:39:41,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:39:41,761 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:39:41,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:39:41,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1160044347, now seen corresponding path program 1 times [2021-10-29 04:39:41,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:39:41,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440843968] [2021-10-29 04:39:41,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:39:41,762 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:39:41,771 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-29 04:39:41,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [351862714] [2021-10-29 04:39:41,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:39:41,772 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:39:41,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:39:41,776 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 04:39:41,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-29 04:39:41,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:39:41,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-29 04:39:41,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:39:42,015 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:39:42,015 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:39:42,241 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:39:42,241 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:39:42,241 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440843968] [2021-10-29 04:39:42,242 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 04:39:42,242 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351862714] [2021-10-29 04:39:42,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351862714] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 04:39:42,244 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1891036879] [2021-10-29 04:39:42,248 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-10-29 04:39:42,248 INFO L166 IcfgInterpreter]: Building call graph [2021-10-29 04:39:42,249 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-29 04:39:42,249 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-29 04:39:42,250 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-29 04:39:42,266 INFO L180 QuantifierPusher]: treesize reduction 8, result has 95.1 percent of original size [2021-10-29 04:39:42,268 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:39:42,268 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:39:42,269 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-29 04:39:42,270 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:39:42,271 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:39:42,272 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-29 04:39:42,278 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 157 [2021-10-29 04:39:42,291 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_14|], 21=[|v_#valid_15|]} [2021-10-29 04:39:42,298 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-29 04:39:42,299 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:39:42,299 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-29 04:39:42,300 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:39:42,300 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-29 04:39:42,300 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 04:39:42,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:39:42,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:39:42,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:39:42,326 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 [2021-10-29 04:39:42,327 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:39:42,327 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 04:39:42,328 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:39:42,329 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 04:39:42,329 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 04:39:42,329 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:39:42,338 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:39:42,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:39:42,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:39:42,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:39:42,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:39:42,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:39:42,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:39:42,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:39:42,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:39:42,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:39:42,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-10-29 04:39:42,365 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:39:42,370 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 04:39:42,370 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:39:42,371 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 04:39:42,371 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-29 04:39:42,372 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:39:42,379 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:39:42,383 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.5 percent of original size [2021-10-29 04:39:42,385 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-10-29 04:39:42,386 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-29 04:39:42,386 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:290, output treesize:116 [2021-10-29 04:39:42,393 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:39:42,405 INFO L185 QuantifierPusher]: treesize reduction 73, result has 71.9 percent of original size 187 [2021-10-29 04:39:42,410 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:39:42,434 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:39:42,437 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:39:42,438 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:39:42,440 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:39:42,451 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:39:42,463 INFO L180 QuantifierPusher]: treesize reduction 54, result has 73.3 percent of original size [2021-10-29 04:39:42,470 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 200 [2021-10-29 04:39:42,487 INFO L180 QuantifierPusher]: treesize reduction 69, result has 74.2 percent of original size [2021-10-29 04:39:42,494 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-10-29 04:39:42,501 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:39:42,513 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 110 [2021-10-29 04:39:42,519 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-29 04:39:43,604 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 04:39:43,605 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-29 04:39:43,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-10-29 04:39:43,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415206158] [2021-10-29 04:39:43,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-29 04:39:43,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:39:43,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-29 04:39:43,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-10-29 04:39:43,607 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 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) [2021-10-29 04:39:44,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:39:44,209 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions. [2021-10-29 04:39:44,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-29 04:39:44,209 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 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 12 [2021-10-29 04:39:44,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:39:44,210 INFO L225 Difference]: With dead ends: 36 [2021-10-29 04:39:44,210 INFO L226 Difference]: Without dead ends: 22 [2021-10-29 04:39:44,211 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2021-10-29 04:39:44,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-10-29 04:39:44,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-10-29 04:39:44,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.0476190476190477) internal successors, (22), 21 states have internal predecessors, (22), 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) [2021-10-29 04:39:44,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2021-10-29 04:39:44,219 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 12 [2021-10-29 04:39:44,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:39:44,219 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2021-10-29 04:39:44,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 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) [2021-10-29 04:39:44,220 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2021-10-29 04:39:44,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-29 04:39:44,221 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:39:44,221 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:39:44,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-29 04:39:44,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:39:44,437 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:39:44,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:39:44,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1362449055, now seen corresponding path program 2 times [2021-10-29 04:39:44,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:39:44,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446563986] [2021-10-29 04:39:44,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:39:44,439 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:39:44,451 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-29 04:39:44,451 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [324146596] [2021-10-29 04:39:44,454 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-29 04:39:44,455 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:39:44,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:39:44,458 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 04:39:44,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-29 04:39:48,686 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-10-29 04:39:48,686 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-29 04:39:48,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-29 04:39:48,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:39:49,061 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:39:49,062 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:39:49,473 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:39:49,473 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:39:49,473 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446563986] [2021-10-29 04:39:49,473 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 04:39:49,473 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324146596] [2021-10-29 04:39:49,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [324146596] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 04:39:49,473 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1990988411] [2021-10-29 04:39:49,475 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-10-29 04:39:49,476 INFO L166 IcfgInterpreter]: Building call graph [2021-10-29 04:39:49,476 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-29 04:39:49,476 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-29 04:39:49,476 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-29 04:39:49,485 INFO L180 QuantifierPusher]: treesize reduction 8, result has 95.1 percent of original size [2021-10-29 04:39:49,486 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:39:49,487 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:39:49,487 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-29 04:39:49,488 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:39:49,488 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:39:49,489 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-29 04:39:49,491 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 157 [2021-10-29 04:39:49,497 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_15|], 21=[|v_#valid_16|]} [2021-10-29 04:39:49,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:39:49,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:39:49,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:39:49,520 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 [2021-10-29 04:39:49,520 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:39:49,521 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 04:39:49,522 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:39:49,522 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 04:39:49,523 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 04:39:49,529 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-29 04:39:49,530 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:39:49,532 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-29 04:39:49,532 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:39:49,533 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-29 04:39:49,533 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 04:39:49,533 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:39:49,540 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:39:49,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:39:49,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:39:49,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:39:49,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:39:49,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:39:49,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:39:49,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:39:49,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:39:49,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:39:49,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-10-29 04:39:49,563 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:39:49,566 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 04:39:49,567 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:39:49,567 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 04:39:49,567 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-29 04:39:49,568 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:39:49,574 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:39:49,576 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.5 percent of original size [2021-10-29 04:39:49,578 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-10-29 04:39:49,579 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-29 04:39:49,579 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:290, output treesize:116 [2021-10-29 04:39:49,587 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:39:49,593 INFO L185 QuantifierPusher]: treesize reduction 90, result has 68.2 percent of original size 193 [2021-10-29 04:39:49,599 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:39:49,642 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:39:49,643 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:39:49,646 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:39:49,647 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:39:49,657 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:39:49,670 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:39:49,678 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 298 [2021-10-29 04:39:49,683 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:39:49,717 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:39:49,719 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:39:49,722 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:39:49,724 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:39:49,725 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:39:49,726 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:39:49,728 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:39:49,736 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:39:49,747 INFO L180 QuantifierPusher]: treesize reduction 54, result has 73.3 percent of original size [2021-10-29 04:39:49,752 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 200 [2021-10-29 04:39:49,766 INFO L180 QuantifierPusher]: treesize reduction 69, result has 74.2 percent of original size [2021-10-29 04:39:49,771 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-10-29 04:39:49,778 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:39:49,783 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 110 [2021-10-29 04:39:49,789 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-29 04:39:50,915 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 04:39:50,915 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-29 04:39:50,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-10-29 04:39:50,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381139637] [2021-10-29 04:39:50,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-29 04:39:50,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:39:50,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-29 04:39:50,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2021-10-29 04:39:50,916 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 14 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) [2021-10-29 04:39:51,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:39:51,796 INFO L93 Difference]: Finished difference Result 47 states and 51 transitions. [2021-10-29 04:39:51,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-29 04:39:51,797 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 14 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 21 [2021-10-29 04:39:51,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:39:51,798 INFO L225 Difference]: With dead ends: 47 [2021-10-29 04:39:51,798 INFO L226 Difference]: Without dead ends: 37 [2021-10-29 04:39:51,799 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 39 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=228, Invalid=828, Unknown=0, NotChecked=0, Total=1056 [2021-10-29 04:39:51,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-29 04:39:51,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-10-29 04:39:51,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.0277777777777777) internal successors, (37), 36 states have internal predecessors, (37), 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) [2021-10-29 04:39:51,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2021-10-29 04:39:51,810 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 21 [2021-10-29 04:39:51,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:39:51,811 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2021-10-29 04:39:51,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 14 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) [2021-10-29 04:39:51,811 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2021-10-29 04:39:51,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-29 04:39:51,812 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:39:51,813 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 9, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:39:51,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-10-29 04:39:52,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:39:52,021 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:39:52,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:39:52,022 INFO L85 PathProgramCache]: Analyzing trace with hash 385698501, now seen corresponding path program 3 times [2021-10-29 04:39:52,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:39:52,022 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828589381] [2021-10-29 04:39:52,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:39:52,022 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:39:52,048 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-29 04:39:52,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1227561689] [2021-10-29 04:39:52,049 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-29 04:39:52,049 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:39:52,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:39:52,050 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 04:39:52,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-29 04:42:38,781 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-29 04:42:38,781 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-29 04:42:38,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 44 conjunts are in the unsatisfiable core [2021-10-29 04:42:38,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:42:39,276 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:42:39,276 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:42:41,501 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:42:41,501 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:42:41,501 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828589381] [2021-10-29 04:42:41,501 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 04:42:41,502 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227561689] [2021-10-29 04:42:41,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227561689] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 04:42:41,502 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1160727951] [2021-10-29 04:42:41,504 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-10-29 04:42:41,504 INFO L166 IcfgInterpreter]: Building call graph [2021-10-29 04:42:41,504 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-29 04:42:41,505 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-29 04:42:41,505 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-29 04:42:41,512 INFO L180 QuantifierPusher]: treesize reduction 8, result has 95.1 percent of original size [2021-10-29 04:42:41,513 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:42:41,513 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:42:41,514 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-29 04:42:41,514 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:42:41,515 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:42:41,515 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-29 04:42:41,517 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 157 [2021-10-29 04:42:41,520 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_16|], 21=[|v_#valid_17|]} [2021-10-29 04:42:41,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:42:41,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:42:41,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:42:41,542 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 [2021-10-29 04:42:41,542 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:42:41,543 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 04:42:41,543 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:42:41,544 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 04:42:41,544 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 04:42:41,550 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-29 04:42:41,551 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:42:41,551 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-29 04:42:41,552 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:42:41,552 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-29 04:42:41,552 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 04:42:41,553 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:42:41,558 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:42:41,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:42:41,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:42:41,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:42:41,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:42:41,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:42:41,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:42:41,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:42:41,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:42:41,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:42:41,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-10-29 04:42:41,586 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:42:41,589 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 04:42:41,590 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:42:41,590 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 04:42:41,591 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-29 04:42:41,591 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:42:41,596 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:42:41,599 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.5 percent of original size [2021-10-29 04:42:41,600 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-10-29 04:42:41,601 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-29 04:42:41,601 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:290, output treesize:116 [2021-10-29 04:42:41,608 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:42:41,613 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 287 [2021-10-29 04:42:41,618 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:42:41,637 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:42:41,639 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:42:41,641 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:42:41,645 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:42:41,650 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:42:41,660 INFO L180 QuantifierPusher]: treesize reduction 54, result has 73.3 percent of original size [2021-10-29 04:42:41,666 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 200 [2021-10-29 04:42:41,680 INFO L180 QuantifierPusher]: treesize reduction 69, result has 74.2 percent of original size [2021-10-29 04:42:41,685 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-10-29 04:42:41,692 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:42:41,695 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 110 [2021-10-29 04:42:41,701 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-29 04:42:42,966 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 04:42:42,966 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-29 04:42:42,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-10-29 04:42:42,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794704403] [2021-10-29 04:42:42,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-29 04:42:42,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:42:42,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-29 04:42:42,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=773, Unknown=0, NotChecked=0, Total=930 [2021-10-29 04:42:42,969 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand has 25 states, 25 states have (on average 2.8) internal successors, (70), 24 states have internal predecessors, (70), 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) [2021-10-29 04:42:46,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:42:46,731 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2021-10-29 04:42:46,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-29 04:42:46,731 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.8) internal successors, (70), 24 states have internal predecessors, (70), 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 36 [2021-10-29 04:42:46,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:42:46,732 INFO L225 Difference]: With dead ends: 44 [2021-10-29 04:42:46,732 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 04:42:46,733 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 74 SyntacticMatches, 3 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=366, Invalid=1614, Unknown=0, NotChecked=0, Total=1980 [2021-10-29 04:42:46,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 04:42:46,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 04:42:46,733 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) [2021-10-29 04:42:46,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 04:42:46,734 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2021-10-29 04:42:46,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:42:46,734 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 04:42:46,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.8) internal successors, (70), 24 states have internal predecessors, (70), 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) [2021-10-29 04:42:46,735 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 04:42:46,735 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 04:42:46,737 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:42:46,738 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:42:46,738 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:42:46,767 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-10-29 04:42:46,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-10-29 04:42:46,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-29 04:42:46,957 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:42:46,976 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:42:46,976 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:42:46,995 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:42:52,479 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2021-10-29 04:42:52,479 INFO L857 garLoopResultBuilder]: For program point L11(lines 11 12) no Hoare annotation was computed. [2021-10-29 04:42:52,479 INFO L857 garLoopResultBuilder]: For program point L11-1(lines 11 12) no Hoare annotation was computed. [2021-10-29 04:42:52,479 INFO L857 garLoopResultBuilder]: For program point L11-2(lines 11 12) no Hoare annotation was computed. [2021-10-29 04:42:52,480 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-29 04:42:52,480 INFO L853 garLoopResultBuilder]: At program point L28-2(lines 28 37) the Hoare annotation is: (or (and (= (+ (* 6 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)) (* 10 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)) (* 15 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) (+ ULTIMATE.start_main_~y~0 (* 30 ULTIMATE.start_main_~x~0))) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (or (= (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~k~0) (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)) (< ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~k~0)) (forall ((ULTIMATE.start_main_~k~0 Int)) (or (= (+ (* 8 ULTIMATE.start_main_~k~0) (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~k~0)) (+ (* 16 ULTIMATE.start_main_~y~0) 64 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) (<= ULTIMATE.start_main_~k~0 (+ ULTIMATE.start_main_~c~0 7)) (< (+ ULTIMATE.start_main_~c~0 8) ULTIMATE.start_main_~k~0))) (forall ((ULTIMATE.start_main_~k~0 Int)) (or (<= ULTIMATE.start_main_~k~0 (+ ULTIMATE.start_main_~c~0 6)) (= (+ (* 7 ULTIMATE.start_main_~k~0) (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~k~0)) (+ 49 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (* 14 ULTIMATE.start_main_~y~0))) (< (+ ULTIMATE.start_main_~c~0 7) ULTIMATE.start_main_~k~0)))) (and (= ULTIMATE.start_main_~y~0 0) (<= 0 ULTIMATE.start_main_~k~0) (= ULTIMATE.start_main_~x~0 0) (<= ULTIMATE.start_main_~k~0 20) (= ULTIMATE.start_main_~c~0 0))) [2021-10-29 04:42:52,480 INFO L857 garLoopResultBuilder]: For program point L28-3(lines 28 37) no Hoare annotation was computed. [2021-10-29 04:42:52,480 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2021-10-29 04:42:52,480 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-29 04:42:52,480 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2021-10-29 04:42:52,480 INFO L857 garLoopResultBuilder]: For program point L10(lines 10 13) no Hoare annotation was computed. [2021-10-29 04:42:52,480 INFO L853 garLoopResultBuilder]: At program point L10-2(lines 31 32) the Hoare annotation is: (and (= (+ (* 6 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)) (* 10 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)) (* 15 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) (+ ULTIMATE.start_main_~y~0 (* 30 ULTIMATE.start_main_~x~0))) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (or (= (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~k~0) (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)) (< ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~k~0)) (forall ((ULTIMATE.start_main_~k~0 Int)) (or (= (+ (* 8 ULTIMATE.start_main_~k~0) (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~k~0)) (+ (* 16 ULTIMATE.start_main_~y~0) 64 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) (<= ULTIMATE.start_main_~k~0 (+ ULTIMATE.start_main_~c~0 7)) (< (+ ULTIMATE.start_main_~c~0 8) ULTIMATE.start_main_~k~0))) (forall ((ULTIMATE.start_main_~k~0 Int)) (or (<= ULTIMATE.start_main_~k~0 (+ ULTIMATE.start_main_~c~0 6)) (= (+ (* 7 ULTIMATE.start_main_~k~0) (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~k~0)) (+ 49 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (* 14 ULTIMATE.start_main_~y~0))) (< (+ ULTIMATE.start_main_~c~0 7) ULTIMATE.start_main_~k~0)))) [2021-10-29 04:42:52,480 INFO L857 garLoopResultBuilder]: For program point L10-3(lines 10 13) no Hoare annotation was computed. [2021-10-29 04:42:52,481 INFO L853 garLoopResultBuilder]: At program point L10-5(lines 9 15) the Hoare annotation is: (and (= (+ (* 6 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)) (* 10 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)) (* 15 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) (+ ULTIMATE.start_main_~y~0 (* 30 ULTIMATE.start_main_~x~0))) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~k~0) (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) [2021-10-29 04:42:52,481 INFO L857 garLoopResultBuilder]: For program point L10-6(lines 10 13) no Hoare annotation was computed. [2021-10-29 04:42:52,481 INFO L860 garLoopResultBuilder]: At program point L10-8(lines 9 15) the Hoare annotation is: true [2021-10-29 04:42:52,483 INFO L731 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2021-10-29 04:42:52,484 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 04:42:52,490 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,491 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,491 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,491 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,491 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,491 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,491 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,492 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,499 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,499 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,499 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,499 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,500 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,500 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,500 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,500 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,502 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,502 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,502 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,502 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,503 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,503 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,503 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,503 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,504 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,504 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,505 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,505 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,505 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,505 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,505 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,506 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:42:52 BoogieIcfgContainer [2021-10-29 04:42:52,508 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 04:42:52,509 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:42:52,509 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:42:52,509 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:42:52,510 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:39:35" (3/4) ... [2021-10-29 04:42:52,512 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 04:42:52,522 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2021-10-29 04:42:52,522 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-29 04:42:52,522 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-29 04:42:52,523 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 04:42:52,555 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 04:42:52,555 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:42:52,556 INFO L168 Benchmark]: Toolchain (without parser) took 197472.15 ms. Allocated memory was 104.9 MB in the beginning and 151.0 MB in the end (delta: 46.1 MB). Free memory was 70.3 MB in the beginning and 48.2 MB in the end (delta: 22.1 MB). Peak memory consumption was 67.7 MB. Max. memory is 16.1 GB. [2021-10-29 04:42:52,557 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 104.9 MB. Free memory is still 59.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:42:52,557 INFO L168 Benchmark]: CACSL2BoogieTranslator took 229.36 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 70.1 MB in the beginning and 99.1 MB in the end (delta: -29.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:42:52,558 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.33 ms. Allocated memory is still 125.8 MB. Free memory was 99.1 MB in the beginning and 97.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:42:52,558 INFO L168 Benchmark]: Boogie Preprocessor took 21.05 ms. Allocated memory is still 125.8 MB. Free memory was 97.6 MB in the beginning and 96.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:42:52,558 INFO L168 Benchmark]: RCFGBuilder took 332.63 ms. Allocated memory is still 125.8 MB. Free memory was 96.5 MB in the beginning and 83.9 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:42:52,559 INFO L168 Benchmark]: TraceAbstraction took 196800.94 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 83.4 MB in the beginning and 51.3 MB in the end (delta: 32.1 MB). Peak memory consumption was 58.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:42:52,559 INFO L168 Benchmark]: Witness Printer took 47.01 ms. Allocated memory is still 151.0 MB. Free memory was 51.3 MB in the beginning and 48.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:42:52,561 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 104.9 MB. Free memory is still 59.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 229.36 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 70.1 MB in the beginning and 99.1 MB in the end (delta: -29.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.33 ms. Allocated memory is still 125.8 MB. Free memory was 99.1 MB in the beginning and 97.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.05 ms. Allocated memory is still 125.8 MB. Free memory was 97.6 MB in the beginning and 96.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 332.63 ms. Allocated memory is still 125.8 MB. Free memory was 96.5 MB in the beginning and 83.9 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 196800.94 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 83.4 MB in the beginning and 51.3 MB in the end (delta: 32.1 MB). Peak memory consumption was 58.2 MB. Max. memory is 16.1 GB. * Witness Printer took 47.01 ms. Allocated memory is still 151.0 MB. Free memory was 51.3 MB in the beginning and 48.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s 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, 16 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 196.7s, OverallIterations: 5, TraceHistogramMax: 10, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 8.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 43 SDtfs, 241 SDslu, 220 SDs, 0 SdLazy, 538 SolverSat, 93 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 4.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 276 GetRequests, 151 SyntacticMatches, 11 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 571 ImplicationChecksByTransitivity, 10.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=4, InterpolantAutomatonStates: 63, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 23 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 37 NumberOfFragments, 255 HoareAnnotationTreeSize, 4 FomulaSimplifications, 870 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 3365 FormulaSimplificationTreeSizeReductionInter, 5.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 170.9s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 156 ConstructedInterpolants, 30 QuantifiedInterpolants, 2099 SizeOfPredicates, 22 NumberOfNonLiveVariables, 485 ConjunctsInSsa, 108 ConjunctsInUnsatCore, 10 InterpolantComputations, 2 PerfectInterpolantSequences, 6/350 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 - InvariantResult [Line: 31]: Loop Invariant [2021-10-29 04:42:52,580 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,580 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,580 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,580 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,580 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,581 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,581 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,582 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,591 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,591 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,592 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,592 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,592 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,592 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,592 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,593 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] Derived loop invariant: (((6 * (y * y * y * y * y) + 10 * (y * y * y) + 15 * (y * y * y * y) == y + 30 * x && 1 <= cond) && (y * k == y * y || c < k)) && (forall ULTIMATE.start_main_~k~0 : int :: (8 * ULTIMATE.start_main_~k~0 + y * ULTIMATE.start_main_~k~0 == 16 * y + 64 + y * y || ULTIMATE.start_main_~k~0 <= c + 7) || c + 8 < ULTIMATE.start_main_~k~0)) && (forall ULTIMATE.start_main_~k~0 : int :: (ULTIMATE.start_main_~k~0 <= c + 6 || 7 * ULTIMATE.start_main_~k~0 + y * ULTIMATE.start_main_~k~0 == 49 + y * y + 14 * y) || c + 7 < ULTIMATE.start_main_~k~0) - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant [2021-10-29 04:42:52,593 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,594 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,595 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,595 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,595 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,595 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,595 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,596 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,596 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,599 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,599 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,599 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,599 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,599 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,599 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 04:42:52,600 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] Derived loop invariant: ((((6 * (y * y * y * y * y) + 10 * (y * y * y) + 15 * (y * y * y * y) == y + 30 * x && 1 <= cond) && (y * k == y * y || c < k)) && (forall ULTIMATE.start_main_~k~0 : int :: (8 * ULTIMATE.start_main_~k~0 + y * ULTIMATE.start_main_~k~0 == 16 * y + 64 + y * y || ULTIMATE.start_main_~k~0 <= c + 7) || c + 8 < ULTIMATE.start_main_~k~0)) && (forall ULTIMATE.start_main_~k~0 : int :: (ULTIMATE.start_main_~k~0 <= c + 6 || 7 * ULTIMATE.start_main_~k~0 + y * ULTIMATE.start_main_~k~0 == 49 + y * y + 14 * y) || c + 7 < ULTIMATE.start_main_~k~0)) || ((((y == 0 && 0 <= k) && x == 0) && k <= 20) && c == 0) - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: (6 * (y * y * y * y * y) + 10 * (y * y * y) + 15 * (y * y * y * y) == y + 30 * x && 1 <= cond) && y * k == y * y RESULT: Ultimate proved your program to be correct! [2021-10-29 04:42:52,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874097dc-efd0-4210-b58d-4ecc5ee09ccd/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...