./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d544f689-3a65-4c81-8729-64b6fc98a6cc/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d544f689-3a65-4c81-8729-64b6fc98a6cc/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d544f689-3a65-4c81-8729-64b6fc98a6cc/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d544f689-3a65-4c81-8729-64b6fc98a6cc/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d544f689-3a65-4c81-8729-64b6fc98a6cc/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d544f689-3a65-4c81-8729-64b6fc98a6cc/bin/utaipan-UUZaoUuFF8 --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 dbc7fc96c6d4708331280184201322c719c7fb1504d84fafd0b9583653597d2e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:21:50,862 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:21:50,865 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:21:50,909 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:21:50,909 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:21:50,911 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:21:50,913 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:21:50,915 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:21:50,918 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:21:50,919 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:21:50,920 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:21:50,922 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:21:50,922 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:21:50,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:21:50,925 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:21:50,927 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:21:50,928 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:21:50,929 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:21:50,932 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:21:50,935 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:21:50,937 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:21:50,939 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:21:50,940 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:21:50,941 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:21:50,946 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:21:50,946 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:21:50,947 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:21:50,948 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:21:50,949 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:21:50,950 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:21:50,950 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:21:50,951 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:21:50,952 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:21:50,957 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:21:50,958 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:21:50,959 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:21:50,960 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:21:50,960 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:21:50,960 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:21:50,962 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:21:50,962 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:21:50,965 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d544f689-3a65-4c81-8729-64b6fc98a6cc/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 01:21:51,012 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:21:51,012 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:21:51,014 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:21:51,014 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:21:51,014 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:21:51,014 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:21:51,015 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:21:51,015 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:21:51,021 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:21:51,021 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:21:51,022 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:21:51,023 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:21:51,023 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:21:51,023 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:21:51,023 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:21:51,024 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:21:51,024 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:21:51,024 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:21:51,025 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:21:51,025 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:21:51,025 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:21:51,025 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:21:51,025 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:21:51,026 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:21:51,026 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:21:51,026 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:21:51,026 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:21:51,026 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:21:51,027 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:21:51,028 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:21:51,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:21:51,029 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:21:51,029 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:21:51,029 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:21:51,029 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:21:51,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:21:51,030 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:21:51,030 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:21:51,030 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:21:51,030 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_d544f689-3a65-4c81-8729-64b6fc98a6cc/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d544f689-3a65-4c81-8729-64b6fc98a6cc/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbc7fc96c6d4708331280184201322c719c7fb1504d84fafd0b9583653597d2e [2021-11-07 01:21:51,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:21:51,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:21:51,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:21:51,403 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:21:51,403 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:21:51,404 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d544f689-3a65-4c81-8729-64b6fc98a6cc/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound2.c [2021-11-07 01:21:51,478 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d544f689-3a65-4c81-8729-64b6fc98a6cc/bin/utaipan-UUZaoUuFF8/data/6fb5b8263/8534d0fce3ef4e398a187afc415c201e/FLAGeba372fde [2021-11-07 01:21:51,952 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:21:51,953 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d544f689-3a65-4c81-8729-64b6fc98a6cc/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound2.c [2021-11-07 01:21:51,969 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d544f689-3a65-4c81-8729-64b6fc98a6cc/bin/utaipan-UUZaoUuFF8/data/6fb5b8263/8534d0fce3ef4e398a187afc415c201e/FLAGeba372fde [2021-11-07 01:21:52,325 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d544f689-3a65-4c81-8729-64b6fc98a6cc/bin/utaipan-UUZaoUuFF8/data/6fb5b8263/8534d0fce3ef4e398a187afc415c201e [2021-11-07 01:21:52,327 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:21:52,328 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:21:52,330 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:21:52,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:21:52,346 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:21:52,347 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:21:52" (1/1) ... [2021-11-07 01:21:52,348 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@356902ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:52, skipping insertion in model container [2021-11-07 01:21:52,348 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:21:52" (1/1) ... [2021-11-07 01:21:52,355 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:21:52,369 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:21:52,570 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_d544f689-3a65-4c81-8729-64b6fc98a6cc/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound2.c[458,471] [2021-11-07 01:21:52,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:21:52,599 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:21:52,613 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_d544f689-3a65-4c81-8729-64b6fc98a6cc/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound2.c[458,471] [2021-11-07 01:21:52,623 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:21:52,637 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:21:52,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:52 WrapperNode [2021-11-07 01:21:52,638 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:21:52,639 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:21:52,639 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:21:52,640 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:21:52,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:52" (1/1) ... [2021-11-07 01:21:52,654 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:52" (1/1) ... [2021-11-07 01:21:52,673 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:21:52,674 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:21:52,674 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:21:52,674 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:21:52,682 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:52" (1/1) ... [2021-11-07 01:21:52,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:52" (1/1) ... [2021-11-07 01:21:52,684 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:52" (1/1) ... [2021-11-07 01:21:52,684 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:52" (1/1) ... [2021-11-07 01:21:52,688 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:52" (1/1) ... [2021-11-07 01:21:52,691 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:52" (1/1) ... [2021-11-07 01:21:52,692 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:52" (1/1) ... [2021-11-07 01:21:52,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:21:52,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:21:52,695 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:21:52,696 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:21:52,697 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:52" (1/1) ... [2021-11-07 01:21:52,704 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:21:52,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d544f689-3a65-4c81-8729-64b6fc98a6cc/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:21:52,730 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d544f689-3a65-4c81-8729-64b6fc98a6cc/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:21:52,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d544f689-3a65-4c81-8729-64b6fc98a6cc/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:21:52,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 01:21:52,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:21:52,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:21:52,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:21:53,238 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:21:53,238 INFO L299 CfgBuilder]: Removed 15 assume(true) statements. [2021-11-07 01:21:53,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:21:53 BoogieIcfgContainer [2021-11-07 01:21:53,241 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:21:53,243 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:21:53,243 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:21:53,246 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:21:53,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:21:52" (1/3) ... [2021-11-07 01:21:53,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20f883e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:21:53, skipping insertion in model container [2021-11-07 01:21:53,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:52" (2/3) ... [2021-11-07 01:21:53,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20f883e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:21:53, skipping insertion in model container [2021-11-07 01:21:53,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:21:53" (3/3) ... [2021-11-07 01:21:53,250 INFO L111 eAbstractionObserver]: Analyzing ICFG ps6-ll_valuebound2.c [2021-11-07 01:21:53,256 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:21:53,256 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-07 01:21:53,324 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:21:53,335 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 [2021-11-07 01:21:53,335 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-07 01:21:53,350 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) [2021-11-07 01:21:53,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-07 01:21:53,355 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:21:53,355 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-07 01:21:53,356 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:21:53,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:21:53,374 INFO L85 PathProgramCache]: Analyzing trace with hash 3301933, now seen corresponding path program 1 times [2021-11-07 01:21:53,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:21:53,392 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431147361] [2021-11-07 01:21:53,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:21:53,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:21:53,516 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 01:21:53,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [793847589] [2021-11-07 01:21:53,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:21:53,518 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:21:53,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d544f689-3a65-4c81-8729-64b6fc98a6cc/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:21:53,522 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d544f689-3a65-4c81-8729-64b6fc98a6cc/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:21:53,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d544f689-3a65-4c81-8729-64b6fc98a6cc/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 01:21:53,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:21:53,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:21:53,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:21:53,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:21:53,803 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:21:54,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:21:54,030 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:21:54,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431147361] [2021-11-07 01:21:54,030 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:21:54,031 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793847589] [2021-11-07 01:21:54,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [793847589] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:21:54,032 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:21:54,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:21:54,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620067898] [2021-11-07 01:21:54,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:21:54,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:21:54,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:21:54,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:21:54,055 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) [2021-11-07 01:21:56,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:21:56,471 INFO L93 Difference]: Finished difference Result 52 states and 69 transitions. [2021-11-07 01:21:56,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 01:21:56,477 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 [2021-11-07 01:21:56,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:21:56,483 INFO L225 Difference]: With dead ends: 52 [2021-11-07 01:21:56,484 INFO L226 Difference]: Without dead ends: 27 [2021-11-07 01:21:56,486 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:21:56,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-11-07 01:21:56,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 22. [2021-11-07 01:21:56,517 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) [2021-11-07 01:21:56,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2021-11-07 01:21:56,521 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 4 [2021-11-07 01:21:56,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:21:56,522 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2021-11-07 01:21:56,522 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) [2021-11-07 01:21:56,522 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2021-11-07 01:21:56,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-07 01:21:56,523 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:21:56,523 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2021-11-07 01:21:56,546 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d544f689-3a65-4c81-8729-64b6fc98a6cc/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-07 01:21:56,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d544f689-3a65-4c81-8729-64b6fc98a6cc/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:21:56,746 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:21:56,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:21:56,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1187658925, now seen corresponding path program 1 times [2021-11-07 01:21:56,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:21:56,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722084774] [2021-11-07 01:21:56,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:21:56,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:21:56,763 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 01:21:56,763 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1335762290] [2021-11-07 01:21:56,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:21:56,764 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:21:56,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d544f689-3a65-4c81-8729-64b6fc98a6cc/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:21:56,765 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d544f689-3a65-4c81-8729-64b6fc98a6cc/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:21:56,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d544f689-3a65-4c81-8729-64b6fc98a6cc/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 01:21:56,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:21:56,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 01:21:56,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:21:57,090 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:21:57,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:21:57,229 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-07 01:21:57,229 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:21:57,229 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722084774] [2021-11-07 01:21:57,229 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:21:57,230 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335762290] [2021-11-07 01:21:57,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1335762290] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:21:57,230 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2110693030] [2021-11-07 01:21:57,251 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2021-11-07 01:21:57,251 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:21:57,256 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:21:57,262 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:21:57,263 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:21:57,296 INFO L180 QuantifierPusher]: treesize reduction 8, result has 95.1 percent of original size [2021-11-07 01:21:57,303 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:21:57,304 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:21:57,305 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 01:21:57,306 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:21:57,307 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:21:57,307 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:21:57,312 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 157 [2021-11-07 01:21:57,345 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_13|], 21=[|v_#valid_14|]} [2021-11-07 01:21:57,369 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:21:57,369 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:21:57,370 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:21:57,370 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:21:57,371 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:21:57,371 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:21:57,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:21:57,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:21:57,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:21:57,407 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 [2021-11-07 01:21:57,408 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:21:57,409 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:21:57,410 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:21:57,410 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:21:57,411 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:21:57,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:21:57,494 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:21:57,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:21:57,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:21:57,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:21:57,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:21:57,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:21:57,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:21:57,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:21:57,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:21:57,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:21:57,519 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 [2021-11-07 01:21:57,520 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:21:57,523 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:21:57,524 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:21:57,525 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:21:57,525 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:21:57,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:21:57,595 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:21:57,604 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.5 percent of original size [2021-11-07 01:21:57,614 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-11-07 01:21:57,615 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:21:57,615 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:290, output treesize:116 [2021-11-07 01:21:57,629 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:21:57,640 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 328 [2021-11-07 01:21:57,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:21:57,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:21:57,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:21:57,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:21:57,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:21:57,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:21:57,840 INFO L180 QuantifierPusher]: treesize reduction 65, result has 71.0 percent of original size [2021-11-07 01:21:57,848 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 231 [2021-11-07 01:21:57,860 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 01:21:58,573 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:21:58,573 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:21:58,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3] total 6 [2021-11-07 01:21:58,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571670919] [2021-11-07 01:21:58,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 01:21:58,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:21:58,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 01:21:58,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-11-07 01:21:58,576 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 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) [2021-11-07 01:21:58,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:21:58,757 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2021-11-07 01:21:58,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:21:58,758 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 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 [2021-11-07 01:21:58,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:21:58,759 INFO L225 Difference]: With dead ends: 35 [2021-11-07 01:21:58,759 INFO L226 Difference]: Without dead ends: 31 [2021-11-07 01:21:58,760 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2021-11-07 01:21:58,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-11-07 01:21:58,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 13. [2021-11-07 01:21:58,765 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) [2021-11-07 01:21:58,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-11-07 01:21:58,766 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2021-11-07 01:21:58,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:21:58,767 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-11-07 01:21:58,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 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) [2021-11-07 01:21:58,767 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-11-07 01:21:58,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-07 01:21:58,768 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:21:58,768 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:21:58,773 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d544f689-3a65-4c81-8729-64b6fc98a6cc/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-07 01:21:58,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d544f689-3a65-4c81-8729-64b6fc98a6cc/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:21:58,972 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:21:58,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:21:58,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1160044347, now seen corresponding path program 1 times [2021-11-07 01:21:58,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:21:58,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905597701] [2021-11-07 01:21:58,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:21:58,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:21:58,986 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 01:21:58,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1362249270] [2021-11-07 01:21:58,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:21:58,987 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:21:58,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d544f689-3a65-4c81-8729-64b6fc98a6cc/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:21:58,988 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d544f689-3a65-4c81-8729-64b6fc98a6cc/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:21:59,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d544f689-3a65-4c81-8729-64b6fc98a6cc/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-07 01:21:59,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:21:59,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-07 01:21:59,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:21:59,362 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:21:59,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:21:59,738 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:21:59,739 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:21:59,739 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905597701] [2021-11-07 01:21:59,739 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:21:59,739 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362249270] [2021-11-07 01:21:59,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1362249270] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:21:59,740 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2102079601] [2021-11-07 01:21:59,754 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-07 01:21:59,754 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:21:59,754 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:21:59,755 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:21:59,755 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:21:59,766 INFO L180 QuantifierPusher]: treesize reduction 8, result has 95.1 percent of original size [2021-11-07 01:21:59,767 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:21:59,767 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:21:59,768 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:21:59,769 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:21:59,769 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:21:59,770 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 01:21:59,773 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 157 [2021-11-07 01:21:59,779 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_14|], 21=[|v_#valid_15|]} [2021-11-07 01:21:59,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:21:59,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:21:59,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:21:59,798 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 [2021-11-07 01:21:59,799 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:21:59,799 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:21:59,800 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:21:59,800 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:21:59,801 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:21:59,808 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:21:59,808 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:21:59,809 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:21:59,809 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:21:59,809 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:21:59,810 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:21:59,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:21:59,818 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:21:59,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:21:59,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:21:59,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:21:59,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:21:59,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:21:59,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:21:59,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:21:59,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:21:59,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:21:59,838 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 [2021-11-07 01:21:59,839 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:21:59,842 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:21:59,842 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:21:59,843 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:21:59,843 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:21:59,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:21:59,850 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:21:59,853 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.5 percent of original size [2021-11-07 01:21:59,855 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-11-07 01:21:59,856 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:21:59,856 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:290, output treesize:116 [2021-11-07 01:21:59,868 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:21:59,876 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 141 [2021-11-07 01:21:59,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:21:59,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:21:59,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:21:59,987 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:21:59,997 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 412 [2021-11-07 01:22:00,012 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:22:00,035 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 546 [2021-11-07 01:22:00,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:22:00,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:22:00,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:22:00,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:22:00,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:22:00,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:22:00,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:22:00,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:22:00,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:22:00,162 INFO L180 QuantifierPusher]: treesize reduction 65, result has 71.0 percent of original size [2021-11-07 01:22:00,169 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 231 [2021-11-07 01:22:00,187 INFO L180 QuantifierPusher]: treesize reduction 89, result has 71.0 percent of original size [2021-11-07 01:22:00,193 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-11-07 01:22:00,203 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:22:00,209 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-11-07 01:22:00,214 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 01:22:01,160 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:22:01,160 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:22:01,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-11-07 01:22:01,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601710116] [2021-11-07 01:22:01,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 01:22:01,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:22:01,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 01:22:01,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-11-07 01:22:01,162 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) [2021-11-07 01:22:01,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:01,719 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions. [2021-11-07 01:22:01,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-07 01:22:01,719 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 [2021-11-07 01:22:01,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:01,720 INFO L225 Difference]: With dead ends: 36 [2021-11-07 01:22:01,720 INFO L226 Difference]: Without dead ends: 22 [2021-11-07 01:22:01,722 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2021-11-07 01:22:01,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-11-07 01:22:01,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-11-07 01:22:01,731 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) [2021-11-07 01:22:01,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2021-11-07 01:22:01,732 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 12 [2021-11-07 01:22:01,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:01,732 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2021-11-07 01:22:01,733 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) [2021-11-07 01:22:01,733 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2021-11-07 01:22:01,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-07 01:22:01,733 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:01,734 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:22:01,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d544f689-3a65-4c81-8729-64b6fc98a6cc/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:01,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d544f689-3a65-4c81-8729-64b6fc98a6cc/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-07 01:22:01,961 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:22:01,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:01,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1362449055, now seen corresponding path program 2 times [2021-11-07 01:22:01,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:22:01,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798280529] [2021-11-07 01:22:01,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:01,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:22:01,973 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 01:22:01,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [86087831] [2021-11-07 01:22:01,973 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 01:22:01,973 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:22:01,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d544f689-3a65-4c81-8729-64b6fc98a6cc/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:22:01,974 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d544f689-3a65-4c81-8729-64b6fc98a6cc/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:22:01,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d544f689-3a65-4c81-8729-64b6fc98a6cc/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-07 01:22:02,078 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-11-07 01:22:02,078 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 01:22:02,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:22:02,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:02,241 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:22:02,241 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:02,326 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:22:02,326 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:22:02,327 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798280529] [2021-11-07 01:22:02,327 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:22:02,327 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86087831] [2021-11-07 01:22:02,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86087831] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:22:02,327 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:22:02,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-07 01:22:02,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985401] [2021-11-07 01:22:02,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:22:02,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:22:02,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:22:02,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:22:02,331 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 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) [2021-11-07 01:22:02,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:02,345 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2021-11-07 01:22:02,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:22:02,346 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 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 [2021-11-07 01:22:02,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:02,346 INFO L225 Difference]: With dead ends: 22 [2021-11-07 01:22:02,346 INFO L226 Difference]: Without dead ends: 0 [2021-11-07 01:22:02,347 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:22:02,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-07 01:22:02,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-07 01:22:02,348 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) [2021-11-07 01:22:02,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-07 01:22:02,348 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2021-11-07 01:22:02,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:02,349 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 01:22:02,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 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) [2021-11-07 01:22:02,349 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-07 01:22:02,349 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-07 01:22:02,352 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:22:02,353 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:22:02,353 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:22:02,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d544f689-3a65-4c81-8729-64b6fc98a6cc/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:02,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d544f689-3a65-4c81-8729-64b6fc98a6cc/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:22:02,582 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-07 01:22:02,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:22:02,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:22:02,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:22:02,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:22:03,950 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2021-11-07 01:22:03,950 INFO L857 garLoopResultBuilder]: For program point L11(lines 11 12) no Hoare annotation was computed. [2021-11-07 01:22:03,951 INFO L857 garLoopResultBuilder]: For program point L11-1(lines 11 12) no Hoare annotation was computed. [2021-11-07 01:22:03,951 INFO L857 garLoopResultBuilder]: For program point L11-2(lines 11 12) no Hoare annotation was computed. [2021-11-07 01:22:03,951 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-07 01:22:03,951 INFO L853 garLoopResultBuilder]: At program point L28-2(lines 28 37) the Hoare annotation is: (let ((.cse5 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) (let ((.cse4 (<= 0 ULTIMATE.start_main_~k~0)) (.cse0 (= (+ (* 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)) (* 5 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)) (* 2 (* 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 ULTIMATE.start_main_~y~0))) (+ .cse5 (* 12 ULTIMATE.start_main_~x~0)))) (.cse1 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse2 (<= ULTIMATE.start_main_~k~0 2)) (.cse3 (forall ((ULTIMATE.start_main_~k~0 Int)) (or (< (+ ULTIMATE.start_main_~c~0 1) ULTIMATE.start_main_~k~0) (= (+ (* 2 ULTIMATE.start_main_~y~0) (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) 1) (+ ULTIMATE.start_main_~k~0 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~k~0))) (<= ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~c~0))))) (or (and .cse0 (< 0 ULTIMATE.start_main_~k~0) .cse1 .cse2 (= ULTIMATE.start_main_~y~0 1) .cse3) (and (= ULTIMATE.start_main_~y~0 0) .cse4 (= ULTIMATE.start_main_~x~0 0) .cse2 (= ULTIMATE.start_main_~c~0 0)) (and .cse4 .cse0 .cse1 (= (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~k~0) .cse5) .cse2 .cse3)))) [2021-11-07 01:22:03,951 INFO L857 garLoopResultBuilder]: For program point L28-3(lines 28 37) no Hoare annotation was computed. [2021-11-07 01:22:03,951 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2021-11-07 01:22:03,951 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-07 01:22:03,951 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2021-11-07 01:22:03,952 INFO L857 garLoopResultBuilder]: For program point L10(lines 10 13) no Hoare annotation was computed. [2021-11-07 01:22:03,952 INFO L853 garLoopResultBuilder]: At program point L10-2(lines 31 32) the Hoare annotation is: (let ((.cse4 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) (let ((.cse0 (= (+ (* 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)) (* 5 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)) (* 2 (* 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 ULTIMATE.start_main_~y~0))) (+ .cse4 (* 12 ULTIMATE.start_main_~x~0)))) (.cse1 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse2 (<= ULTIMATE.start_main_~k~0 2)) (.cse3 (forall ((ULTIMATE.start_main_~k~0 Int)) (or (< (+ ULTIMATE.start_main_~c~0 1) ULTIMATE.start_main_~k~0) (= (+ (* 2 ULTIMATE.start_main_~y~0) (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) 1) (+ ULTIMATE.start_main_~k~0 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~k~0))) (<= ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~c~0))))) (or (and .cse0 (< 0 ULTIMATE.start_main_~k~0) .cse1 .cse2 (= ULTIMATE.start_main_~y~0 1) .cse3) (and (<= 0 ULTIMATE.start_main_~k~0) .cse0 .cse1 (= (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~k~0) .cse4) .cse2 .cse3)))) [2021-11-07 01:22:03,952 INFO L857 garLoopResultBuilder]: For program point L10-3(lines 10 13) no Hoare annotation was computed. [2021-11-07 01:22:03,952 INFO L853 garLoopResultBuilder]: At program point L10-5(lines 9 15) the Hoare annotation is: (let ((.cse0 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) (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)) (* 5 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)) (* 2 (* 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 ULTIMATE.start_main_~y~0))) (+ .cse0 (* 12 ULTIMATE.start_main_~x~0))) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~k~0) .cse0))) [2021-11-07 01:22:03,952 INFO L857 garLoopResultBuilder]: For program point L10-6(lines 10 13) no Hoare annotation was computed. [2021-11-07 01:22:03,952 INFO L860 garLoopResultBuilder]: At program point L10-8(lines 9 15) the Hoare annotation is: true [2021-11-07 01:22:03,955 INFO L731 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2021-11-07 01:22:03,957 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 01:22:03,963 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:03,964 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:03,964 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:03,964 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:03,964 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:03,964 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:03,965 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:03,965 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:03,971 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:03,971 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:03,972 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:03,972 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:03,972 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:03,972 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:03,972 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:03,972 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:03,974 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:03,974 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:03,975 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:03,975 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:03,975 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:03,975 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:03,975 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:03,976 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:03,977 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:03,977 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:03,978 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:03,978 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:03,978 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:03,978 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:03,978 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:03,978 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:03,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:22:03 BoogieIcfgContainer [2021-11-07 01:22:03,981 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 01:22:03,981 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 01:22:03,981 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 01:22:03,981 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 01:22:03,982 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:21:53" (3/4) ... [2021-11-07 01:22:03,985 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-07 01:22:03,993 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2021-11-07 01:22:03,994 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-11-07 01:22:03,994 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-07 01:22:03,994 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 01:22:04,032 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d544f689-3a65-4c81-8729-64b6fc98a6cc/bin/utaipan-UUZaoUuFF8/witness.graphml [2021-11-07 01:22:04,032 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 01:22:04,033 INFO L168 Benchmark]: Toolchain (without parser) took 11704.34 ms. Allocated memory was 121.6 MB in the beginning and 146.8 MB in the end (delta: 25.2 MB). Free memory was 86.0 MB in the beginning and 58.7 MB in the end (delta: 27.3 MB). Peak memory consumption was 52.7 MB. Max. memory is 16.1 GB. [2021-11-07 01:22:04,034 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 121.6 MB. Free memory was 95.5 MB in the beginning and 95.5 MB in the end (delta: 27.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:22:04,034 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.48 ms. Allocated memory is still 121.6 MB. Free memory was 85.8 MB in the beginning and 96.8 MB in the end (delta: -11.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:22:04,034 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.15 ms. Allocated memory is still 121.6 MB. Free memory was 96.8 MB in the beginning and 94.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:22:04,035 INFO L168 Benchmark]: Boogie Preprocessor took 20.52 ms. Allocated memory is still 121.6 MB. Free memory was 94.8 MB in the beginning and 93.8 MB in the end (delta: 902.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:22:04,035 INFO L168 Benchmark]: RCFGBuilder took 545.78 ms. Allocated memory is still 121.6 MB. Free memory was 93.8 MB in the beginning and 81.3 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:22:04,036 INFO L168 Benchmark]: TraceAbstraction took 10737.96 ms. Allocated memory was 121.6 MB in the beginning and 146.8 MB in the end (delta: 25.2 MB). Free memory was 80.7 MB in the beginning and 60.8 MB in the end (delta: 19.9 MB). Peak memory consumption was 47.3 MB. Max. memory is 16.1 GB. [2021-11-07 01:22:04,036 INFO L168 Benchmark]: Witness Printer took 51.15 ms. Allocated memory is still 146.8 MB. Free memory was 60.8 MB in the beginning and 58.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:22:04,038 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 121.6 MB. Free memory was 95.5 MB in the beginning and 95.5 MB in the end (delta: 27.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 308.48 ms. Allocated memory is still 121.6 MB. Free memory was 85.8 MB in the beginning and 96.8 MB in the end (delta: -11.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.15 ms. Allocated memory is still 121.6 MB. Free memory was 96.8 MB in the beginning and 94.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.52 ms. Allocated memory is still 121.6 MB. Free memory was 94.8 MB in the beginning and 93.8 MB in the end (delta: 902.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 545.78 ms. Allocated memory is still 121.6 MB. Free memory was 93.8 MB in the beginning and 81.3 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10737.96 ms. Allocated memory was 121.6 MB in the beginning and 146.8 MB in the end (delta: 25.2 MB). Free memory was 80.7 MB in the beginning and 60.8 MB in the end (delta: 19.9 MB). Peak memory consumption was 47.3 MB. Max. memory is 16.1 GB. * Witness Printer took 51.15 ms. Allocated memory is still 146.8 MB. Free memory was 60.8 MB in the beginning and 58.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 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: 10.6s, OverallIterations: 4, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 29 SDtfs, 72 SDslu, 67 SDs, 0 SdLazy, 130 SolverSat, 36 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 72 SyntacticMatches, 5 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=1, InterpolantAutomatonStates: 34, 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, 4 MinimizatonAttempts, 23 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 17 NumberOfFragments, 351 HoareAnnotationTreeSize, 4 FomulaSimplifications, 192 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 546 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 86 ConstructedInterpolants, 3 QuantifiedInterpolants, 748 SizeOfPredicates, 11 NumberOfNonLiveVariables, 314 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 65/80 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 [2021-11-07 01:22:04,051 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:04,052 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:04,052 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:04,052 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:04,052 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:04,052 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:04,053 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:04,053 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:04,054 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:04,054 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:04,054 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:04,054 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:04,055 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:04,055 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:04,055 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:04,055 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) + 5 * (y * y * y * y) + 2 * (y * y * y * y * y * y) == y * y + 12 * x && 0 < k) && 1 <= cond) && k <= 2) && y == 1) && (forall ULTIMATE.start_main_~k~0 : int :: (c + 1 < ULTIMATE.start_main_~k~0 || 2 * y + y * y + 1 == ULTIMATE.start_main_~k~0 + y * ULTIMATE.start_main_~k~0) || ULTIMATE.start_main_~k~0 <= c)) || (((((0 <= k && 6 * (y * y * y * y * y) + 5 * (y * y * y * y) + 2 * (y * y * y * y * y * y) == y * y + 12 * x) && 1 <= cond) && y * k == y * y) && k <= 2) && (forall ULTIMATE.start_main_~k~0 : int :: (c + 1 < ULTIMATE.start_main_~k~0 || 2 * y + y * y + 1 == ULTIMATE.start_main_~k~0 + y * ULTIMATE.start_main_~k~0) || ULTIMATE.start_main_~k~0 <= c)) - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant [2021-11-07 01:22:04,056 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:04,056 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:04,056 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:04,057 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:04,057 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:04,057 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:04,057 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:04,057 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:04,058 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:04,058 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:04,058 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:04,059 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:04,059 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:04,059 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:04,059 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-11-07 01:22:04,059 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) + 5 * (y * y * y * y) + 2 * (y * y * y * y * y * y) == y * y + 12 * x && 0 < k) && 1 <= cond) && k <= 2) && y == 1) && (forall ULTIMATE.start_main_~k~0 : int :: (c + 1 < ULTIMATE.start_main_~k~0 || 2 * y + y * y + 1 == ULTIMATE.start_main_~k~0 + y * ULTIMATE.start_main_~k~0) || ULTIMATE.start_main_~k~0 <= c)) || ((((y == 0 && 0 <= k) && x == 0) && k <= 2) && c == 0)) || (((((0 <= k && 6 * (y * y * y * y * y) + 5 * (y * y * y * y) + 2 * (y * y * y * y * y * y) == y * y + 12 * x) && 1 <= cond) && y * k == y * y) && k <= 2) && (forall ULTIMATE.start_main_~k~0 : int :: (c + 1 < ULTIMATE.start_main_~k~0 || 2 * y + y * y + 1 == ULTIMATE.start_main_~k~0 + y * ULTIMATE.start_main_~k~0) || ULTIMATE.start_main_~k~0 <= c)) - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: (6 * (y * y * y * y * y) + 5 * (y * y * y * y) + 2 * (y * y * y * y * y * y) == y * y + 12 * x && 1 <= cond) && y * k == y * y RESULT: Ultimate proved your program to be correct! [2021-11-07 01:22:04,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d544f689-3a65-4c81-8729-64b6fc98a6cc/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE