./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops-crafted-1/sumt2.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_9d634727-a80c-4c2b-a2e7-352e2c671235/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d634727-a80c-4c2b-a2e7-352e2c671235/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_9d634727-a80c-4c2b-a2e7-352e2c671235/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d634727-a80c-4c2b-a2e7-352e2c671235/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops-crafted-1/sumt2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d634727-a80c-4c2b-a2e7-352e2c671235/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_9d634727-a80c-4c2b-a2e7-352e2c671235/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 ec9e015a6c63e8a6b780de2e1355dbb0a1dac223 .............................................................................................................................................................................................................................................................................................................................................. 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 02:25:52,140 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:25:52,142 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:25:52,191 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:25:52,191 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:25:52,193 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:25:52,194 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:25:52,197 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:25:52,199 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:25:52,200 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:25:52,201 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:25:52,203 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:25:52,203 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:25:52,204 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:25:52,206 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:25:52,207 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:25:52,208 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:25:52,209 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:25:52,212 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:25:52,214 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:25:52,216 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:25:52,218 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:25:52,219 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:25:52,220 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:25:52,223 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:25:52,224 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:25:52,224 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:25:52,225 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:25:52,226 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:25:52,227 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:25:52,227 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:25:52,228 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:25:52,229 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:25:52,230 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:25:52,231 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:25:52,232 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:25:52,233 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:25:52,233 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:25:52,233 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:25:52,235 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:25:52,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:25:52,238 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d634727-a80c-4c2b-a2e7-352e2c671235/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:25:52,272 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:25:52,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:25:52,275 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:25:52,275 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:25:52,276 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:25:52,276 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:25:52,276 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:25:52,276 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:25:52,279 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:25:52,280 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:25:52,281 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:25:52,281 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:25:52,281 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:25:52,281 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:25:52,281 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:25:52,282 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:25:52,282 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:25:52,282 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:25:52,282 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:25:52,282 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:25:52,282 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:25:52,283 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:25:52,283 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:25:52,283 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:25:52,283 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:25:52,283 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:25:52,283 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:25:52,283 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:25:52,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:25:52,284 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:25:52,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:25:52,284 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:25:52,284 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:25:52,284 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:25:52,284 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:25:52,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:25:52,284 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:25:52,285 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:25:52,285 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:25:52,285 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_9d634727-a80c-4c2b-a2e7-352e2c671235/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d634727-a80c-4c2b-a2e7-352e2c671235/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec9e015a6c63e8a6b780de2e1355dbb0a1dac223 [2021-10-11 02:25:52,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:25:52,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:25:52,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:25:52,549 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:25:52,550 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:25:52,551 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d634727-a80c-4c2b-a2e7-352e2c671235/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/loops-crafted-1/sumt2.c [2021-10-11 02:25:52,619 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d634727-a80c-4c2b-a2e7-352e2c671235/bin/utaipan-WLngWcDbfI/data/7dd3ad16e/13796fff64464a6babfd7f64f65903ce/FLAG682ba679f [2021-10-11 02:25:53,060 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:25:53,061 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d634727-a80c-4c2b-a2e7-352e2c671235/sv-benchmarks/c/loops-crafted-1/sumt2.c [2021-10-11 02:25:53,073 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d634727-a80c-4c2b-a2e7-352e2c671235/bin/utaipan-WLngWcDbfI/data/7dd3ad16e/13796fff64464a6babfd7f64f65903ce/FLAG682ba679f [2021-10-11 02:25:53,426 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d634727-a80c-4c2b-a2e7-352e2c671235/bin/utaipan-WLngWcDbfI/data/7dd3ad16e/13796fff64464a6babfd7f64f65903ce [2021-10-11 02:25:53,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:25:53,435 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:25:53,437 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:25:53,437 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:25:53,441 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:25:53,442 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:25:53" (1/1) ... [2021-10-11 02:25:53,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15e193fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:53, skipping insertion in model container [2021-10-11 02:25:53,444 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:25:53" (1/1) ... [2021-10-11 02:25:53,451 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:25:53,464 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:25:53,625 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_9d634727-a80c-4c2b-a2e7-352e2c671235/sv-benchmarks/c/loops-crafted-1/sumt2.c[403,416] [2021-10-11 02:25:53,636 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:25:53,644 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:25:53,654 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_9d634727-a80c-4c2b-a2e7-352e2c671235/sv-benchmarks/c/loops-crafted-1/sumt2.c[403,416] [2021-10-11 02:25:53,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:25:53,672 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:25:53,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:53 WrapperNode [2021-10-11 02:25:53,672 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:25:53,674 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:25:53,674 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:25:53,674 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:25:53,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:53" (1/1) ... [2021-10-11 02:25:53,693 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:53" (1/1) ... [2021-10-11 02:25:53,714 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:25:53,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:25:53,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:25:53,715 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:25:53,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:53" (1/1) ... [2021-10-11 02:25:53,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:53" (1/1) ... [2021-10-11 02:25:53,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:53" (1/1) ... [2021-10-11 02:25:53,725 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:53" (1/1) ... [2021-10-11 02:25:53,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:53" (1/1) ... [2021-10-11 02:25:53,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:53" (1/1) ... [2021-10-11 02:25:53,732 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:53" (1/1) ... [2021-10-11 02:25:53,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:25:53,734 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:25:53,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:25:53,735 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:25:53,736 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:53" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d634727-a80c-4c2b-a2e7-352e2c671235/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 02:25:53,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:25:53,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:25:53,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:25:53,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:25:54,199 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:25:54,208 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-11 02:25:54,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:54 BoogieIcfgContainer [2021-10-11 02:25:54,210 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:25:54,212 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:25:54,212 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:25:54,221 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:25:54,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:25:53" (1/3) ... [2021-10-11 02:25:54,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28200475 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:25:54, skipping insertion in model container [2021-10-11 02:25:54,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:53" (2/3) ... [2021-10-11 02:25:54,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28200475 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:25:54, skipping insertion in model container [2021-10-11 02:25:54,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:54" (3/3) ... [2021-10-11 02:25:54,224 INFO L111 eAbstractionObserver]: Analyzing ICFG sumt2.c [2021-10-11 02:25:54,238 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:25:54,264 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:25:54,273 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:25:54,298 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:25:54,298 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:25:54,298 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:25:54,298 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:25:54,299 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:25:54,299 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:25:54,299 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:25:54,299 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:25:54,325 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2021-10-11 02:25:54,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 02:25:54,330 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:54,330 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 02:25:54,331 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:54,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:54,336 INFO L82 PathProgramCache]: Analyzing trace with hash 67669777, now seen corresponding path program 1 times [2021-10-11 02:25:54,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:54,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863162912] [2021-10-11 02:25:54,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:54,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:54,610 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 02:25:54,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863162912] [2021-10-11 02:25:54,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:54,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:25:54,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94172166] [2021-10-11 02:25:54,616 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:25:54,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:54,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:25:54,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:25:54,633 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2021-10-11 02:25:54,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:54,691 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2021-10-11 02:25:54,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:25:54,693 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2021-10-11 02:25:54,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:54,701 INFO L225 Difference]: With dead ends: 21 [2021-10-11 02:25:54,702 INFO L226 Difference]: Without dead ends: 7 [2021-10-11 02:25:54,704 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 02:25:54,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-10-11 02:25:54,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-10-11 02:25:54,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-11 02:25:54,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2021-10-11 02:25:54,734 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2021-10-11 02:25:54,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:54,735 INFO L481 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2021-10-11 02:25:54,735 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:25:54,735 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2021-10-11 02:25:54,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 02:25:54,736 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:54,736 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 02:25:54,736 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:25:54,737 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:54,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:54,738 INFO L82 PathProgramCache]: Analyzing trace with hash 2097866845, now seen corresponding path program 1 times [2021-10-11 02:25:54,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:54,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246277694] [2021-10-11 02:25:54,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:54,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:54,972 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:54,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246277694] [2021-10-11 02:25:54,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26496532] [2021-10-11 02:25:54,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d634727-a80c-4c2b-a2e7-352e2c671235/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 02:25:55,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:55,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-11 02:25:55,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:25:55,081 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:55,082 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:25:55,175 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2021-10-11 02:25:55,320 INFO L757 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-10-11 02:25:55,472 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2021-10-11 02:25:55,507 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2021-10-11 02:25:55,517 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 9 conjuncts [2021-10-11 02:25:55,579 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2021-10-11 02:25:55,584 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 9 conjuncts [2021-10-11 02:26:15,058 WARN L197 SmtUtils]: Spent 12.73 s on a formula simplification. DAG size of input: 101 DAG size of output: 83 [2021-10-11 02:26:15,114 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:26:15,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2021-10-11 02:26:15,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 9 [2021-10-11 02:26:15,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711101243] [2021-10-11 02:26:15,116 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:26:15,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:26:15,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:26:15,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=47, Unknown=2, NotChecked=0, Total=72 [2021-10-11 02:26:15,118 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 5 states. [2021-10-11 02:26:18,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:18,883 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2021-10-11 02:26:18,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:26:18,883 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2021-10-11 02:26:18,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:18,884 INFO L225 Difference]: With dead ends: 7 [2021-10-11 02:26:18,884 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:26:18,885 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 20.8s TimeCoverageRelationStatistics Valid=28, Invalid=59, Unknown=3, NotChecked=0, Total=90 [2021-10-11 02:26:18,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:26:18,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:26:18,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:26:18,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:26:18,886 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2021-10-11 02:26:18,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:18,886 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:26:18,886 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:26:18,886 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:26:18,887 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:26:19,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-11 02:26:19,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:26:19,106 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:26:19,107 INFO L258 CegarLoopResult]: At program point L23-2(lines 23 30) the Hoare annotation is: (= (mod ULTIMATE.start_main_~l~0 4294967296) (mod (+ ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~j~0) 4294967296)) [2021-10-11 02:26:19,107 INFO L262 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2021-10-11 02:26:19,107 INFO L262 CegarLoopResult]: For program point L9(lines 9 11) no Hoare annotation was computed. [2021-10-11 02:26:19,107 INFO L258 CegarLoopResult]: At program point L9-2(lines 8 13) the Hoare annotation is: (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) [2021-10-11 02:26:19,107 INFO L265 CegarLoopResult]: At program point L32(lines 16 33) the Hoare annotation is: true [2021-10-11 02:26:19,107 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:26:19,108 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2021-10-11 02:26:19,108 INFO L262 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2021-10-11 02:26:19,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:26:19 BoogieIcfgContainer [2021-10-11 02:26:19,130 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:26:19,131 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:26:19,131 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:26:19,131 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:26:19,131 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:54" (3/4) ... [2021-10-11 02:26:19,134 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:26:19,143 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-10-11 02:26:19,143 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-11 02:26:19,143 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:26:19,143 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:26:19,178 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d634727-a80c-4c2b-a2e7-352e2c671235/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:26:19,178 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:26:19,179 INFO L168 Benchmark]: Toolchain (without parser) took 25742.98 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 87.1 MB in the beginning and 65.3 MB in the end (delta: 21.9 MB). Peak memory consumption was 46.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:19,179 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 88.1 MB. Free memory was 48.6 MB in the beginning and 48.5 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:26:19,180 INFO L168 Benchmark]: CACSL2BoogieTranslator took 235.86 ms. Allocated memory is still 117.4 MB. Free memory was 86.8 MB in the beginning and 93.2 MB in the end (delta: -6.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:19,181 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.29 ms. Allocated memory is still 117.4 MB. Free memory was 93.2 MB in the beginning and 91.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:19,181 INFO L168 Benchmark]: Boogie Preprocessor took 19.26 ms. Allocated memory is still 117.4 MB. Free memory was 91.7 MB in the beginning and 91.0 MB in the end (delta: 665.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:26:19,182 INFO L168 Benchmark]: RCFGBuilder took 475.81 ms. Allocated memory is still 117.4 MB. Free memory was 90.6 MB in the beginning and 74.9 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:19,183 INFO L168 Benchmark]: TraceAbstraction took 24918.09 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 74.4 MB in the beginning and 67.4 MB in the end (delta: 7.1 MB). Peak memory consumption was 34.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:19,183 INFO L168 Benchmark]: Witness Printer took 47.14 ms. Allocated memory is still 142.6 MB. Free memory was 67.4 MB in the beginning and 65.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:19,187 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 88.1 MB. Free memory was 48.6 MB in the beginning and 48.5 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 235.86 ms. Allocated memory is still 117.4 MB. Free memory was 86.8 MB in the beginning and 93.2 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 40.29 ms. Allocated memory is still 117.4 MB. Free memory was 93.2 MB in the beginning and 91.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.26 ms. Allocated memory is still 117.4 MB. Free memory was 91.7 MB in the beginning and 91.0 MB in the end (delta: 665.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 475.81 ms. Allocated memory is still 117.4 MB. Free memory was 90.6 MB in the beginning and 74.9 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 24918.09 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 74.4 MB in the beginning and 67.4 MB in the end (delta: 7.1 MB). Peak memory consumption was 34.2 MB. Max. memory is 16.1 GB. * Witness Printer took 47.14 ms. Allocated memory is still 142.6 MB. Free memory was 67.4 MB in the beginning and 65.3 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.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: 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 1 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: l % 4294967296 == (i + j) % 4294967296 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: !(0 == cond) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 24.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 10 SDslu, 14 SDs, 0 SdLazy, 14 SolverSat, 2 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 20.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 9 NumberOfFragments, 14 HoareAnnotationTreeSize, 3 FomulaSimplifications, 35 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 20.4s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 19 ConstructedInterpolants, 1 QuantifiedInterpolants, 1724 SizeOfPredicates, 4 NumberOfNonLiveVariables, 54 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 1/3 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...