./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5fd656e-3355-46c1-8542-49347522ec88/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5fd656e-3355-46c1-8542-49347522ec88/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5fd656e-3355-46c1-8542-49347522ec88/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5fd656e-3355-46c1-8542-49347522ec88/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5fd656e-3355-46c1-8542-49347522ec88/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5fd656e-3355-46c1-8542-49347522ec88/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a8da7bb6495346e44a0ef3b7d50d5e0fbdae8843 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:20:23,568 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:20:23,571 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:20:23,618 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:20:23,618 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:20:23,620 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:20:23,622 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:20:23,624 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:20:23,626 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:20:23,628 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:20:23,629 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:20:23,630 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:20:23,631 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:20:23,632 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:20:23,634 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:20:23,635 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:20:23,636 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:20:23,637 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:20:23,640 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:20:23,642 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:20:23,644 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:20:23,645 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:20:23,647 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:20:23,648 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:20:23,652 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:20:23,652 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:20:23,653 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:20:23,654 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:20:23,655 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:20:23,656 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:20:23,656 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:20:23,658 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:20:23,659 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:20:23,660 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:20:23,661 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:20:23,661 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:20:23,662 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:20:23,663 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:20:23,663 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:20:23,664 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:20:23,665 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:20:23,666 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5fd656e-3355-46c1-8542-49347522ec88/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:20:23,690 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:20:23,693 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:20:23,695 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:20:23,695 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:20:23,696 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:20:23,696 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:20:23,696 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:20:23,696 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:20:23,697 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:20:23,697 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:20:23,698 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:20:23,698 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:20:23,699 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:20:23,699 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:20:23,699 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:20:23,700 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:20:23,700 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:20:23,701 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:20:23,701 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:20:23,701 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:20:23,701 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:20:23,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:20:23,702 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:20:23,702 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:20:23,702 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:20:23,702 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:20:23,703 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:20:23,703 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:20:23,703 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:20:23,705 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:20:23,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:20:23,705 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:20:23,706 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:20:23,706 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:20:23,706 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:20:23,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:20:23,707 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:20:23,707 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:20:23,707 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:20:23,707 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_b5fd656e-3355-46c1-8542-49347522ec88/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5fd656e-3355-46c1-8542-49347522ec88/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8da7bb6495346e44a0ef3b7d50d5e0fbdae8843 [2021-10-11 02:20:23,955 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:20:23,990 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:20:23,992 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:20:23,994 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:20:23,995 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:20:23,996 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5fd656e-3355-46c1-8542-49347522ec88/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound1.c [2021-10-11 02:20:24,085 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5fd656e-3355-46c1-8542-49347522ec88/bin/utaipan-WLngWcDbfI/data/53f2ed36a/8cacf77f642e49dd8019a45f846f7f10/FLAGf0c1f8275 [2021-10-11 02:20:24,564 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:20:24,565 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5fd656e-3355-46c1-8542-49347522ec88/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound1.c [2021-10-11 02:20:24,571 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5fd656e-3355-46c1-8542-49347522ec88/bin/utaipan-WLngWcDbfI/data/53f2ed36a/8cacf77f642e49dd8019a45f846f7f10/FLAGf0c1f8275 [2021-10-11 02:20:24,933 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5fd656e-3355-46c1-8542-49347522ec88/bin/utaipan-WLngWcDbfI/data/53f2ed36a/8cacf77f642e49dd8019a45f846f7f10 [2021-10-11 02:20:24,936 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:20:24,937 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:20:24,939 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:20:24,939 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:20:24,943 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:20:24,944 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:20:24" (1/1) ... [2021-10-11 02:20:24,946 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@584385e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:24, skipping insertion in model container [2021-10-11 02:20:24,946 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:20:24" (1/1) ... [2021-10-11 02:20:24,954 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:20:24,968 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:20:25,147 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5fd656e-3355-46c1-8542-49347522ec88/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound1.c[520,533] [2021-10-11 02:20:25,161 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:20:25,170 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:20:25,181 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5fd656e-3355-46c1-8542-49347522ec88/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound1.c[520,533] [2021-10-11 02:20:25,187 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:20:25,201 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:20:25,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:25 WrapperNode [2021-10-11 02:20:25,201 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:20:25,202 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:20:25,203 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:20:25,203 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:20:25,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:25" (1/1) ... [2021-10-11 02:20:25,218 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:25" (1/1) ... [2021-10-11 02:20:25,238 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:20:25,238 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:20:25,239 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:20:25,239 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:20:25,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:25" (1/1) ... [2021-10-11 02:20:25,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:25" (1/1) ... [2021-10-11 02:20:25,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:25" (1/1) ... [2021-10-11 02:20:25,249 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:25" (1/1) ... [2021-10-11 02:20:25,253 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:25" (1/1) ... [2021-10-11 02:20:25,258 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:25" (1/1) ... [2021-10-11 02:20:25,259 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:25" (1/1) ... [2021-10-11 02:20:25,261 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:20:25,262 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:20:25,262 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:20:25,262 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:20:25,263 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:25" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5fd656e-3355-46c1-8542-49347522ec88/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:20:25,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:20:25,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:20:25,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:20:25,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:20:25,683 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:20:25,683 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2021-10-11 02:20:25,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:20:25 BoogieIcfgContainer [2021-10-11 02:20:25,685 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:20:25,687 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:20:25,687 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:20:25,706 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:20:25,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:20:24" (1/3) ... [2021-10-11 02:20:25,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3369fcda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:20:25, skipping insertion in model container [2021-10-11 02:20:25,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:25" (2/3) ... [2021-10-11 02:20:25,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3369fcda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:20:25, skipping insertion in model container [2021-10-11 02:20:25,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:20:25" (3/3) ... [2021-10-11 02:20:25,709 INFO L111 eAbstractionObserver]: Analyzing ICFG sqrt1-ll_unwindbound1.c [2021-10-11 02:20:25,723 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:20:25,737 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2021-10-11 02:20:25,747 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-11 02:20:25,796 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:20:25,796 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:20:25,797 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:20:25,797 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:20:25,797 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:20:25,797 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:20:25,797 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:20:25,798 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:20:25,828 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2021-10-11 02:20:25,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 02:20:25,854 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:20:25,854 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 02:20:25,855 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:20:25,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:20:25,861 INFO L82 PathProgramCache]: Analyzing trace with hash 113318109, now seen corresponding path program 1 times [2021-10-11 02:20:25,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:20:25,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082488312] [2021-10-11 02:20:25,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:20:25,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:20:26,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:20:26,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082488312] [2021-10-11 02:20:26,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:20:26,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:20:26,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706591268] [2021-10-11 02:20:26,009 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:20:26,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:20:26,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:20:26,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:20:26,026 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 2 states. [2021-10-11 02:20:26,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:20:26,052 INFO L93 Difference]: Finished difference Result 57 states and 73 transitions. [2021-10-11 02:20:26,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:20:26,054 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2021-10-11 02:20:26,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:20:26,062 INFO L225 Difference]: With dead ends: 57 [2021-10-11 02:20:26,062 INFO L226 Difference]: Without dead ends: 27 [2021-10-11 02:20:26,065 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:20:26,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-10-11 02:20:26,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-10-11 02:20:26,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2021-10-11 02:20:26,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2021-10-11 02:20:26,107 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 5 [2021-10-11 02:20:26,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:20:26,108 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2021-10-11 02:20:26,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:20:26,108 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2021-10-11 02:20:26,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 02:20:26,109 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:20:26,109 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 02:20:26,109 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:20:26,109 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:20:26,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:20:26,110 INFO L82 PathProgramCache]: Analyzing trace with hash 111966592, now seen corresponding path program 1 times [2021-10-11 02:20:26,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:20:26,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623692692] [2021-10-11 02:20:26,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:20:26,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:20:26,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:20:26,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623692692] [2021-10-11 02:20:26,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:20:26,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:20:26,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577945242] [2021-10-11 02:20:26,229 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:20:26,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:20:26,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:20:26,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:20:26,232 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 4 states. [2021-10-11 02:20:26,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:20:26,354 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2021-10-11 02:20:26,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:20:26,355 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2021-10-11 02:20:26,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:20:26,356 INFO L225 Difference]: With dead ends: 30 [2021-10-11 02:20:26,356 INFO L226 Difference]: Without dead ends: 26 [2021-10-11 02:20:26,357 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:20:26,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-10-11 02:20:26,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 23. [2021-10-11 02:20:26,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2021-10-11 02:20:26,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2021-10-11 02:20:26,368 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 5 [2021-10-11 02:20:26,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:20:26,369 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2021-10-11 02:20:26,369 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:20:26,369 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2021-10-11 02:20:26,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 02:20:26,370 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:20:26,371 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:20:26,371 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:20:26,372 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:20:26,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:20:26,375 INFO L82 PathProgramCache]: Analyzing trace with hash 225868067, now seen corresponding path program 1 times [2021-10-11 02:20:26,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:20:26,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401378149] [2021-10-11 02:20:26,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:20:26,403 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:20:26,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [72532348] [2021-10-11 02:20:26,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5fd656e-3355-46c1-8542-49347522ec88/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:20:26,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:20:26,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-11 02:20:26,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:20:26,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:20:26,536 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:20:26,611 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2021-10-11 02:20:26,611 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-10-11 02:20:26,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:20:26,636 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401378149] [2021-10-11 02:20:26,636 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:20:26,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72532348] [2021-10-11 02:20:26,637 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:20:26,637 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-11 02:20:26,637 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026052995] [2021-10-11 02:20:26,638 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-10-11 02:20:26,638 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:20:26,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-11 02:20:26,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-10-11 02:20:26,640 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 10 states. [2021-10-11 02:20:26,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:20:26,946 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions. [2021-10-11 02:20:26,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 02:20:26,946 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 7 [2021-10-11 02:20:26,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:20:26,948 INFO L225 Difference]: With dead ends: 48 [2021-10-11 02:20:26,949 INFO L226 Difference]: Without dead ends: 33 [2021-10-11 02:20:26,950 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2021-10-11 02:20:26,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-10-11 02:20:26,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 27. [2021-10-11 02:20:26,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2021-10-11 02:20:26,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2021-10-11 02:20:26,968 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 7 [2021-10-11 02:20:26,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:20:26,969 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2021-10-11 02:20:26,969 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-10-11 02:20:26,969 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2021-10-11 02:20:26,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 02:20:26,970 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:20:26,970 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-10-11 02:20:27,184 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-10-11 02:20:27,185 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:20:27,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:20:27,185 INFO L82 PathProgramCache]: Analyzing trace with hash 874023160, now seen corresponding path program 1 times [2021-10-11 02:20:27,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:20:27,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217704092] [2021-10-11 02:20:27,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:20:27,198 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:20:27,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [212505035] [2021-10-11 02:20:27,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5fd656e-3355-46c1-8542-49347522ec88/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:20:27,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:20:27,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:20:27,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:20:27,344 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:20:27,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:20:27,380 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:20:27,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217704092] [2021-10-11 02:20:27,381 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:20:27,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212505035] [2021-10-11 02:20:27,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [669078943] [2021-10-11 02:20:27,406 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2021-10-11 02:20:27,406 INFO L166 IcfgInterpreter]: Building call graph [2021-10-11 02:20:27,410 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-11 02:20:27,416 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-11 02:20:27,417 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-11 02:20:28,237 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-11 02:20:28,576 WARN L197 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-10-11 02:20:28,963 WARN L197 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 62 [2021-10-11 02:20:29,545 WARN L197 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 74 [2021-10-11 02:20:29,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2021-10-11 02:20:29,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 4] total 8 [2021-10-11 02:20:29,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444979193] [2021-10-11 02:20:29,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:20:29,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:20:29,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:20:29,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:20:29,649 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 6 states. [2021-10-11 02:20:29,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:20:29,790 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2021-10-11 02:20:29,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:20:29,790 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2021-10-11 02:20:29,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:20:29,791 INFO L225 Difference]: With dead ends: 35 [2021-10-11 02:20:29,791 INFO L226 Difference]: Without dead ends: 25 [2021-10-11 02:20:29,792 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 34 SyntacticMatches, 8 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:20:29,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-10-11 02:20:29,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 19. [2021-10-11 02:20:29,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-10-11 02:20:29,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2021-10-11 02:20:29,798 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 17 [2021-10-11 02:20:29,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:20:29,799 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2021-10-11 02:20:29,799 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:20:29,799 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2021-10-11 02:20:29,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-11 02:20:29,800 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:20:29,800 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:20:30,016 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:20:30,017 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:20:30,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:20:30,017 INFO L82 PathProgramCache]: Analyzing trace with hash -1818302289, now seen corresponding path program 1 times [2021-10-11 02:20:30,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:20:30,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968844536] [2021-10-11 02:20:30,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:20:30,028 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:20:30,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [329921717] [2021-10-11 02:20:30,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5fd656e-3355-46c1-8542-49347522ec88/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:20:30,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:20:30,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-11 02:20:30,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:20:30,173 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:20:30,173 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:20:36,525 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:20:36,525 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968844536] [2021-10-11 02:20:36,525 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:20:36,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329921717] [2021-10-11 02:20:36,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1885428949] [2021-10-11 02:20:36,528 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2021-10-11 02:20:36,529 INFO L166 IcfgInterpreter]: Building call graph [2021-10-11 02:20:36,529 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-11 02:20:36,529 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-11 02:20:36,530 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-11 02:20:36,964 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-11 02:20:37,362 WARN L197 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-10-11 02:20:38,122 WARN L197 SmtUtils]: Spent 676.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 80 [2021-10-11 02:20:38,384 WARN L197 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2021-10-11 02:20:38,929 WARN L197 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 73 [2021-10-11 02:20:39,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2021-10-11 02:20:39,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 6] total 15 [2021-10-11 02:20:39,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928937096] [2021-10-11 02:20:39,085 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:20:39,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:20:39,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:20:39,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=161, Unknown=3, NotChecked=0, Total=240 [2021-10-11 02:20:39,086 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 6 states. [2021-10-11 02:20:39,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:20:39,212 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2021-10-11 02:20:39,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:20:39,213 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2021-10-11 02:20:39,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:20:39,213 INFO L225 Difference]: With dead ends: 19 [2021-10-11 02:20:39,213 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:20:39,214 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 28 SyntacticMatches, 10 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=76, Invalid=161, Unknown=3, NotChecked=0, Total=240 [2021-10-11 02:20:39,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:20:39,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:20:39,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:20:39,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:20:39,215 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2021-10-11 02:20:39,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:20:39,215 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:20:39,215 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:20:39,215 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:20:39,215 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:20:39,420 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2021-10-11 02:20:39,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:20:39,784 WARN L197 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 67 [2021-10-11 02:20:40,085 WARN L197 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2021-10-11 02:20:40,437 WARN L197 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 80 [2021-10-11 02:20:40,651 WARN L197 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2021-10-11 02:20:40,985 WARN L197 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 78 [2021-10-11 02:20:41,166 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-10-11 02:20:41,168 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-11 02:20:41,168 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-11 02:20:41,168 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-11 02:20:41,169 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:20:41,169 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-11 02:20:41,169 INFO L262 CegarLoopResult]: For program point L12(lines 12 15) no Hoare annotation was computed. [2021-10-11 02:20:41,170 INFO L258 CegarLoopResult]: At program point L12-2(lines 11 17) the Hoare annotation is: (let ((.cse0 (select |#memory_int| |#t~string4.base|))) (and (= (select |#valid| 0) 0) (= ULTIMATE.start_main_~t~0 1) (= (select |#valid| |#t~string5.base|) 1) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (select |#valid| |#t~string4.base|) 1) (= |#t~string5.offset| 0) (= ULTIMATE.start_main_~s~0 1) (= 12 (select |#length| |#t~string6.base|)) (< |#StackHeapBarrier| |#t~string5.base|) (= |#NULL.offset| 0) (= 0 |#t~string4.offset|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond| 1) (<= 0 (+ ULTIMATE.start_main_~n~0 2147483648)) (= 11 (select |#length| |#t~string5.base|)) (= 2 (select |#length| |#t~string4.base|)) (= |#NULL.base| 0) (= ULTIMATE.start_main_~a~0 0) (<= ULTIMATE.start_main_~n~0 2147483647) (= (select |#valid| |#t~string6.base|) 1) (= 48 (select .cse0 |#t~string4.offset|)) (< |#StackHeapBarrier| |#t~string6.base|) (< |#StackHeapBarrier| |#t~string4.base|) (= ~counter~0 1) (< 0 |#StackHeapBarrier|) (= |#t~string6.offset| 0) (= (select .cse0 (+ |#t~string4.offset| 1)) 0))) [2021-10-11 02:20:41,170 INFO L262 CegarLoopResult]: For program point L12-3(lines 12 15) no Hoare annotation was computed. [2021-10-11 02:20:41,170 INFO L258 CegarLoopResult]: At program point L12-5(lines 11 17) the Hoare annotation is: (let ((.cse0 (select |#memory_int| |#t~string4.base|))) (and (= (select |#valid| 0) 0) (= (select |#valid| |#t~string5.base|) 1) (= (select |#valid| |#t~string4.base|) 1) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= |#t~string5.offset| 0) (= ULTIMATE.start_main_~s~0 1) (= 12 (select |#length| |#t~string6.base|)) (< |#StackHeapBarrier| |#t~string5.base|) (= |#NULL.offset| 0) (= 0 |#t~string4.offset|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond| 1) (<= 0 (+ ULTIMATE.start_main_~n~0 2147483648)) (= 11 (select |#length| |#t~string5.base|)) (= 2 (select |#length| |#t~string4.base|)) (= |#NULL.base| 0) (= (+ (* ULTIMATE.start_main_~a~0 2) 1) ULTIMATE.start_main_~t~0) (= ULTIMATE.start_main_~a~0 0) (<= ULTIMATE.start_main_~n~0 2147483647) (= (select |#valid| |#t~string6.base|) 1) (= 48 (select .cse0 |#t~string4.offset|)) (< |#StackHeapBarrier| |#t~string6.base|) (< |#StackHeapBarrier| |#t~string4.base|) (= ~counter~0 1) (< 0 |#StackHeapBarrier|) (= |#t~string6.offset| 0) (= (select .cse0 (+ |#t~string4.offset| 1)) 0))) [2021-10-11 02:20:41,170 INFO L262 CegarLoopResult]: For program point L12-6(lines 12 15) no Hoare annotation was computed. [2021-10-11 02:20:41,171 INFO L258 CegarLoopResult]: At program point L12-8(lines 36 37) the Hoare annotation is: (let ((.cse0 (select |#memory_int| |#t~string4.base|))) (and (= (+ (* ULTIMATE.start_main_~t~0 2) (* ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~t~0) 1) (* ULTIMATE.start_main_~s~0 4)) (= (select |#valid| 0) 0) (= (select |#valid| |#t~string5.base|) 1) (= (select |#valid| |#t~string4.base|) 1) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= |#t~string5.offset| 0) (= 12 (select |#length| |#t~string6.base|)) (< |#StackHeapBarrier| |#t~string5.base|) (= |#NULL.offset| 0) (= 0 |#t~string4.offset|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond| 1) (<= 0 (+ ULTIMATE.start_main_~n~0 2147483648)) (= 11 (select |#length| |#t~string5.base|)) (= 2 (select |#length| |#t~string4.base|)) (= |#NULL.base| 0) (= (+ (* ULTIMATE.start_main_~a~0 2) 1) ULTIMATE.start_main_~t~0) (= ULTIMATE.start_main_~a~0 0) (<= ULTIMATE.start_main_~n~0 2147483647) (= (select |#valid| |#t~string6.base|) 1) (= 48 (select .cse0 |#t~string4.offset|)) (< |#StackHeapBarrier| |#t~string6.base|) (< |#StackHeapBarrier| |#t~string4.base|) (= ~counter~0 1) (< 0 |#StackHeapBarrier|) (= |#t~string6.offset| 0) (= (select .cse0 (+ |#t~string4.offset| 1)) 0))) [2021-10-11 02:20:41,171 INFO L262 CegarLoopResult]: For program point L12-9(lines 12 15) no Hoare annotation was computed. [2021-10-11 02:20:41,171 INFO L258 CegarLoopResult]: At program point L12-11(lines 11 17) the Hoare annotation is: (or (let ((.cse0 (select |#memory_int| |#t~string4.base|))) (and (= |ULTIMATE.start___VERIFIER_assert_#in~cond| ULTIMATE.start___VERIFIER_assert_~cond) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond| 1) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (select |#valid| 0) 0) (<= 0 |#t~string4.offset|) (= (select |#valid| |#t~string5.base|) 1) (= (select |#valid| |#t~string4.base|) 1) (= |#t~string5.offset| 0) (= 12 (select |#length| |#t~string6.base|)) (< |#StackHeapBarrier| |#t~string5.base|) (<= ULTIMATE.start_main_~s~0 4) (= |#NULL.offset| 0) (<= |#t~string4.offset| 0) (<= 4 ULTIMATE.start_main_~s~0) (= 11 (select |#length| |#t~string5.base|)) (<= (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0) ULTIMATE.start_main_~n~0) (= 2 (select |#length| |#t~string4.base|)) (<= |#NULL.base| 0) (= (+ (* ULTIMATE.start_main_~a~0 2) 1) ULTIMATE.start_main_~t~0) (<= ULTIMATE.start_main_~n~0 2147483647) (= (select |#valid| |#t~string6.base|) 1) (= 48 (select .cse0 |#t~string4.offset|)) (= ~counter~0 2) (< |#StackHeapBarrier| |#t~string6.base|) (< |#StackHeapBarrier| |#t~string4.base|) (< 0 |#StackHeapBarrier|) (<= 0 |#NULL.base|) (<= 3 ULTIMATE.start_main_~t~0) (<= ULTIMATE.start_main_~a~0 1) (= |#t~string6.offset| 0) (= (select .cse0 (+ |#t~string4.offset| 1)) 0))) (and (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~s~0 1) (= ULTIMATE.start_main_~a~0 0) (= ULTIMATE.start_main_~t~0 1))) [2021-10-11 02:20:41,171 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:20:41,172 INFO L262 CegarLoopResult]: For program point L12-12(lines 12 15) no Hoare annotation was computed. [2021-10-11 02:20:41,172 INFO L258 CegarLoopResult]: At program point L12-14(lines 11 17) the Hoare annotation is: (let ((.cse0 (= 1 ULTIMATE.start___VERIFIER_assert_~cond))) (or (let ((.cse1 (select |#memory_int| |#t~string4.base|))) (and (= |ULTIMATE.start___VERIFIER_assert_#in~cond| ULTIMATE.start___VERIFIER_assert_~cond) (= (select |#valid| 0) 0) (<= 0 |#t~string4.offset|) (= (select |#valid| |#t~string5.base|) 1) (= (select |#valid| |#t~string4.base|) 1) .cse0 (= |#t~string5.offset| 0) (= 12 (select |#length| |#t~string6.base|)) (< |#StackHeapBarrier| |#t~string5.base|) (<= ULTIMATE.start_main_~s~0 4) (= |#NULL.offset| 0) (<= |#t~string4.offset| 0) (<= 4 ULTIMATE.start_main_~s~0) (= 11 (select |#length| |#t~string5.base|)) (<= (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0) ULTIMATE.start_main_~n~0) (= 2 (select |#length| |#t~string4.base|)) (<= |#NULL.base| 0) (= (+ (* ULTIMATE.start_main_~a~0 2) 1) ULTIMATE.start_main_~t~0) (<= ULTIMATE.start_main_~n~0 2147483647) (= (select |#valid| |#t~string6.base|) 1) (= 48 (select .cse1 |#t~string4.offset|)) (= ~counter~0 2) (< |#StackHeapBarrier| |#t~string6.base|) (< |#StackHeapBarrier| |#t~string4.base|) (< 0 |#StackHeapBarrier|) (<= 0 |#NULL.base|) (<= 3 ULTIMATE.start_main_~t~0) (<= ULTIMATE.start_main_~a~0 1) (= |#t~string6.offset| 0) (= (select .cse1 (+ |#t~string4.offset| 1)) 0))) (and .cse0 (= ULTIMATE.start_main_~s~0 1) (= ULTIMATE.start_main_~a~0 0) (= ULTIMATE.start_main_~t~0 1)))) [2021-10-11 02:20:41,172 INFO L262 CegarLoopResult]: For program point L12-15(lines 12 15) no Hoare annotation was computed. [2021-10-11 02:20:41,172 INFO L265 CegarLoopResult]: At program point L12-17(lines 11 17) the Hoare annotation is: true [2021-10-11 02:20:41,172 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-11 02:20:41,173 INFO L262 CegarLoopResult]: For program point L13(lines 13 14) no Hoare annotation was computed. [2021-10-11 02:20:41,173 INFO L262 CegarLoopResult]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2021-10-11 02:20:41,173 INFO L262 CegarLoopResult]: For program point L13-2(lines 13 14) no Hoare annotation was computed. [2021-10-11 02:20:41,173 INFO L262 CegarLoopResult]: For program point L13-3(lines 13 14) no Hoare annotation was computed. [2021-10-11 02:20:41,173 INFO L262 CegarLoopResult]: For program point L13-4(lines 13 14) no Hoare annotation was computed. [2021-10-11 02:20:41,173 INFO L262 CegarLoopResult]: For program point L13-5(lines 13 14) no Hoare annotation was computed. [2021-10-11 02:20:41,173 INFO L262 CegarLoopResult]: For program point L30-1(lines 30 42) no Hoare annotation was computed. [2021-10-11 02:20:41,174 INFO L258 CegarLoopResult]: At program point L30-3(lines 30 42) the Hoare annotation is: (and (= |#t~string5.offset| 0) (let ((.cse0 (<= |#NULL.base| 0)) (.cse1 (<= ULTIMATE.start_main_~n~0 2147483647)) (.cse2 (<= 0 |#t~string4.base|)) (.cse3 (<= 0 |#t~string6.base|)) (.cse4 (<= 0 |#t~string5.base|)) (.cse5 (<= 0 |#NULL.base|)) (.cse6 (<= 0 |#StackHeapBarrier|))) (or (and (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~cond|) (<= 4 ULTIMATE.start_main_~s~0) (<= ~counter~0 1) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond| 1) .cse0 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 1 ULTIMATE.start_main_~a~0) .cse1 .cse2 (<= ULTIMATE.start_main_~t~0 3) (<= 1 ULTIMATE.start_main_~n~0) (<= 1 ~counter~0) .cse3 .cse4 (<= ULTIMATE.start___VERIFIER_assert_~cond 1) (<= ULTIMATE.start_main_~s~0 4) .cse5 (<= 3 ULTIMATE.start_main_~t~0) (<= ULTIMATE.start_main_~a~0 1) .cse6) (and (<= 0 (+ ULTIMATE.start_main_~n~0 2147483648)) .cse0 (<= ~counter~0 0) (<= ULTIMATE.start_main_~s~0 1) .cse1 .cse2 (<= ULTIMATE.start_main_~a~0 0) (<= 1 ULTIMATE.start_main_~t~0) .cse3 .cse4 (<= 0 ULTIMATE.start_main_~a~0) .cse5 (<= ULTIMATE.start_main_~t~0 1) (<= 0 ~counter~0) (<= 1 ULTIMATE.start_main_~s~0) .cse6))) (= |#NULL.offset| 0) (= |#t~string6.offset| 0) (= 0 |#t~string4.offset|)) [2021-10-11 02:20:41,174 INFO L262 CegarLoopResult]: For program point L30-4(lines 30 42) no Hoare annotation was computed. [2021-10-11 02:20:41,174 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-11 02:20:41,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:20:41 BoogieIcfgContainer [2021-10-11 02:20:41,213 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:20:41,214 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:20:41,214 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:20:41,214 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:20:41,214 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:20:25" (3/4) ... [2021-10-11 02:20:41,217 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:20:41,226 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-10-11 02:20:41,227 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 02:20:41,227 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-11 02:20:41,227 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:20:41,249 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((("sqrt1-ll.c" == 0 && ((((((((((((((((((((1 <= \old(cond) && 4 <= s) && counter <= 1) && \old(cond) <= 1) && #NULL <= 0) && 1 <= cond) && 1 <= a) && n <= 2147483647) && 0 <= "0") && t <= 3) && 1 <= n) && 1 <= counter) && 0 <= "reach_error") && 0 <= "sqrt1-ll.c") && cond <= 1) && s <= 4) && 0 <= #NULL) && 3 <= t) && a <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) || (((((((((((((((0 <= n + 2147483648 && #NULL <= 0) && counter <= 0) && s <= 1) && n <= 2147483647) && 0 <= "0") && a <= 0) && 1 <= t) && 0 <= "reach_error") && 0 <= "sqrt1-ll.c") && 0 <= a) && 0 <= #NULL) && t <= 1) && 0 <= counter) && 1 <= s) && 0 <= unknown-#StackHeapBarrier-unknown))) && #NULL == 0) && "reach_error" == 0) && 0 == "0" [2021-10-11 02:20:41,250 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((((((\old(cond) == cond && \old(cond) <= 1) && 1 <= cond) && \valid[0] == 0) && 0 <= "0") && \valid["sqrt1-ll.c"] == 1) && \valid["0"] == 1) && "sqrt1-ll.c" == 0) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "sqrt1-ll.c") && s <= 4) && #NULL == 0) && "0" <= 0) && 4 <= s) && 11 == unknown-#length-unknown["sqrt1-ll.c"]) && a * a <= n) && 2 == unknown-#length-unknown["0"]) && #NULL <= 0) && a * 2 + 1 == t) && n <= 2147483647) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && counter == 2) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && 0 < unknown-#StackHeapBarrier-unknown) && 0 <= #NULL) && 3 <= t) && a <= 1) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) || (((1 == cond && s == 1) && a == 0) && t == 1) [2021-10-11 02:20:41,250 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((\valid[0] == 0 && t == 1) && \valid["sqrt1-ll.c"] == 1) && 1 == cond) && \valid["0"] == 1) && "sqrt1-ll.c" == 0) && s == 1) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "sqrt1-ll.c") && #NULL == 0) && 0 == "0") && \old(cond) == 1) && 0 <= n + 2147483648) && 11 == unknown-#length-unknown["sqrt1-ll.c"]) && 2 == unknown-#length-unknown["0"]) && #NULL == 0) && a == 0) && n <= 2147483647) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && counter == 1) && 0 < unknown-#StackHeapBarrier-unknown) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0 [2021-10-11 02:20:41,250 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((((((\old(cond) == cond && \valid[0] == 0) && 0 <= "0") && \valid["sqrt1-ll.c"] == 1) && \valid["0"] == 1) && 1 == cond) && "sqrt1-ll.c" == 0) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "sqrt1-ll.c") && s <= 4) && #NULL == 0) && "0" <= 0) && 4 <= s) && 11 == unknown-#length-unknown["sqrt1-ll.c"]) && a * a <= n) && 2 == unknown-#length-unknown["0"]) && #NULL <= 0) && a * 2 + 1 == t) && n <= 2147483647) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && counter == 2) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && 0 < unknown-#StackHeapBarrier-unknown) && 0 <= #NULL) && 3 <= t) && a <= 1) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) || (((1 == cond && s == 1) && a == 0) && t == 1) [2021-10-11 02:20:41,251 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((\valid[0] == 0 && \valid["sqrt1-ll.c"] == 1) && \valid["0"] == 1) && 1 == cond) && "sqrt1-ll.c" == 0) && s == 1) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "sqrt1-ll.c") && #NULL == 0) && 0 == "0") && \old(cond) == 1) && 0 <= n + 2147483648) && 11 == unknown-#length-unknown["sqrt1-ll.c"]) && 2 == unknown-#length-unknown["0"]) && #NULL == 0) && a * 2 + 1 == t) && a == 0) && n <= 2147483647) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && counter == 1) && 0 < unknown-#StackHeapBarrier-unknown) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0 [2021-10-11 02:20:41,251 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((t * 2 + t * t + 1 == s * 4 && \valid[0] == 0) && \valid["sqrt1-ll.c"] == 1) && \valid["0"] == 1) && 1 == cond) && "sqrt1-ll.c" == 0) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "sqrt1-ll.c") && #NULL == 0) && 0 == "0") && \old(cond) == 1) && 0 <= n + 2147483648) && 11 == unknown-#length-unknown["sqrt1-ll.c"]) && 2 == unknown-#length-unknown["0"]) && #NULL == 0) && a * 2 + 1 == t) && a == 0) && n <= 2147483647) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && counter == 1) && 0 < unknown-#StackHeapBarrier-unknown) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0 [2021-10-11 02:20:41,267 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5fd656e-3355-46c1-8542-49347522ec88/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:20:41,268 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:20:41,269 INFO L168 Benchmark]: Toolchain (without parser) took 16330.88 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 79.8 MB in the beginning and 90.9 MB in the end (delta: -11.2 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:41,269 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 111.1 MB. Free memory is still 64.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:20:41,270 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.51 ms. Allocated memory is still 111.1 MB. Free memory was 79.5 MB in the beginning and 85.9 MB in the end (delta: -6.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:41,270 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.49 ms. Allocated memory is still 111.1 MB. Free memory was 85.9 MB in the beginning and 84.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:41,271 INFO L168 Benchmark]: Boogie Preprocessor took 22.51 ms. Allocated memory is still 111.1 MB. Free memory was 84.2 MB in the beginning and 83.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:41,271 INFO L168 Benchmark]: RCFGBuilder took 423.53 ms. Allocated memory is still 111.1 MB. Free memory was 83.0 MB in the beginning and 67.0 MB in the end (delta: 16.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:41,272 INFO L168 Benchmark]: TraceAbstraction took 15526.47 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 66.6 MB in the beginning and 94.0 MB in the end (delta: -27.4 MB). Peak memory consumption was 60.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:41,272 INFO L168 Benchmark]: Witness Printer took 54.20 ms. Allocated memory is still 134.2 MB. Free memory was 94.0 MB in the beginning and 90.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:41,275 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 111.1 MB. Free memory is still 64.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 262.51 ms. Allocated memory is still 111.1 MB. Free memory was 79.5 MB in the beginning and 85.9 MB in the end (delta: -6.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.49 ms. Allocated memory is still 111.1 MB. Free memory was 85.9 MB in the beginning and 84.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.51 ms. Allocated memory is still 111.1 MB. Free memory was 84.2 MB in the beginning and 83.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 423.53 ms. Allocated memory is still 111.1 MB. Free memory was 83.0 MB in the beginning and 67.0 MB in the end (delta: 16.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 15526.47 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 66.6 MB in the beginning and 94.0 MB in the end (delta: -27.4 MB). Peak memory consumption was 60.5 MB. Max. memory is 16.1 GB. * Witness Printer took 54.20 ms. Allocated memory is still 134.2 MB. Free memory was 94.0 MB in the beginning and 90.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((\valid[0] == 0 && t == 1) && \valid["sqrt1-ll.c"] == 1) && 1 == cond) && \valid["0"] == 1) && "sqrt1-ll.c" == 0) && s == 1) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "sqrt1-ll.c") && #NULL == 0) && 0 == "0") && \old(cond) == 1) && 0 <= n + 2147483648) && 11 == unknown-#length-unknown["sqrt1-ll.c"]) && 2 == unknown-#length-unknown["0"]) && #NULL == 0) && a == 0) && n <= 2147483647) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && counter == 1) && 0 < unknown-#StackHeapBarrier-unknown) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((("sqrt1-ll.c" == 0 && ((((((((((((((((((((1 <= \old(cond) && 4 <= s) && counter <= 1) && \old(cond) <= 1) && #NULL <= 0) && 1 <= cond) && 1 <= a) && n <= 2147483647) && 0 <= "0") && t <= 3) && 1 <= n) && 1 <= counter) && 0 <= "reach_error") && 0 <= "sqrt1-ll.c") && cond <= 1) && s <= 4) && 0 <= #NULL) && 3 <= t) && a <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) || (((((((((((((((0 <= n + 2147483648 && #NULL <= 0) && counter <= 0) && s <= 1) && n <= 2147483647) && 0 <= "0") && a <= 0) && 1 <= t) && 0 <= "reach_error") && 0 <= "sqrt1-ll.c") && 0 <= a) && 0 <= #NULL) && t <= 1) && 0 <= counter) && 1 <= s) && 0 <= unknown-#StackHeapBarrier-unknown))) && #NULL == 0) && "reach_error" == 0) && 0 == "0" - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((\old(cond) == cond && \old(cond) <= 1) && 1 <= cond) && \valid[0] == 0) && 0 <= "0") && \valid["sqrt1-ll.c"] == 1) && \valid["0"] == 1) && "sqrt1-ll.c" == 0) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "sqrt1-ll.c") && s <= 4) && #NULL == 0) && "0" <= 0) && 4 <= s) && 11 == unknown-#length-unknown["sqrt1-ll.c"]) && a * a <= n) && 2 == unknown-#length-unknown["0"]) && #NULL <= 0) && a * 2 + 1 == t) && n <= 2147483647) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && counter == 2) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && 0 < unknown-#StackHeapBarrier-unknown) && 0 <= #NULL) && 3 <= t) && a <= 1) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) || (((1 == cond && s == 1) && a == 0) && t == 1) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((\valid[0] == 0 && \valid["sqrt1-ll.c"] == 1) && \valid["0"] == 1) && 1 == cond) && "sqrt1-ll.c" == 0) && s == 1) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "sqrt1-ll.c") && #NULL == 0) && 0 == "0") && \old(cond) == 1) && 0 <= n + 2147483648) && 11 == unknown-#length-unknown["sqrt1-ll.c"]) && 2 == unknown-#length-unknown["0"]) && #NULL == 0) && a * 2 + 1 == t) && a == 0) && n <= 2147483647) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && counter == 1) && 0 < unknown-#StackHeapBarrier-unknown) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((\old(cond) == cond && \valid[0] == 0) && 0 <= "0") && \valid["sqrt1-ll.c"] == 1) && \valid["0"] == 1) && 1 == cond) && "sqrt1-ll.c" == 0) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "sqrt1-ll.c") && s <= 4) && #NULL == 0) && "0" <= 0) && 4 <= s) && 11 == unknown-#length-unknown["sqrt1-ll.c"]) && a * a <= n) && 2 == unknown-#length-unknown["0"]) && #NULL <= 0) && a * 2 + 1 == t) && n <= 2147483647) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && counter == 2) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && 0 < unknown-#StackHeapBarrier-unknown) && 0 <= #NULL) && 3 <= t) && a <= 1) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) || (((1 == cond && s == 1) && a == 0) && t == 1) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((t * 2 + t * t + 1 == s * 4 && \valid[0] == 0) && \valid["sqrt1-ll.c"] == 1) && \valid["0"] == 1) && 1 == cond) && "sqrt1-ll.c" == 0) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "sqrt1-ll.c") && #NULL == 0) && 0 == "0") && \old(cond) == 1) && 0 <= n + 2147483648) && 11 == unknown-#length-unknown["sqrt1-ll.c"]) && 2 == unknown-#length-unknown["0"]) && #NULL == 0) && a * 2 + 1 == t) && a == 0) && n <= 2147483647) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && counter == 1) && 0 < unknown-#StackHeapBarrier-unknown) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13.6s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 65 SDtfs, 92 SDslu, 30 SDs, 0 SdLazy, 189 SolverSat, 70 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 124 GetRequests, 69 SyntacticMatches, 18 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 10.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 15 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 19 NumberOfFragments, 732 HoareAnnotationTreeSize, 7 FomulaSimplifications, 379 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 741 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 6.8s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 86 ConstructedInterpolants, 0 QuantifiedInterpolants, 9763 SizeOfPredicates, 13 NumberOfNonLiveVariables, 238 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 12/18 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: OVERALL_TIME[ms]: 1267, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 31, DAG_INTERPRETER_EARLY_EXITS: 3, TOOLS_POST_APPLICATIONS: 54, TOOLS_POST_TIME[ms]: 534, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME[ms]: 0, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 44, TOOLS_QUANTIFIERELIM_TIME[ms]: 512, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 195, FLUID_QUERY_TIME[ms]: 7, FLUID_QUERIES: 86, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 8, DOMAIN_JOIN_TIME[ms]: 574, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME[ms]: 0, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME[ms]: 0, DOMAIN_ISBOTTOM_APPLICATIONS: 31, DOMAIN_ISBOTTOM_TIME[ms]: 63, LOOP_SUMMARIZER_APPLICATIONS: 2, LOOP_SUMMARIZER_CACHE_MISSES: 2, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 66, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 66, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 0, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 2, PATH_EXPR_TIME[ms]: 5, REGEX_TO_DAG_TIME[ms]: 4, DAG_COMPRESSION_TIME[ms]: 42, DAG_COMPRESSION_PROCESSED_NODES: 521, DAG_COMPRESSION_RETAINED_NODES: 96, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...