./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark20_conjunctive.i --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_40874e95-efcb-4fbc-bf92-011e85a6ecb1/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40874e95-efcb-4fbc-bf92-011e85a6ecb1/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_40874e95-efcb-4fbc-bf92-011e85a6ecb1/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40874e95-efcb-4fbc-bf92-011e85a6ecb1/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark20_conjunctive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40874e95-efcb-4fbc-bf92-011e85a6ecb1/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_40874e95-efcb-4fbc-bf92-011e85a6ecb1/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 f633d6d31a5ab4cff0448367c5d8cec927cf3a8f ............................................................................................................................................................................................................................................................................................................................................... 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 02:29:25,509 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:29:25,515 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:29:25,554 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:29:25,554 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:29:25,556 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:29:25,558 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:29:25,561 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:29:25,564 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:29:25,565 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:29:25,567 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:29:25,569 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:29:25,569 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:29:25,571 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:29:25,573 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:29:25,575 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:29:25,576 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:29:25,578 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:29:25,581 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:29:25,584 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:29:25,586 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:29:25,588 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:29:25,590 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:29:25,592 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:29:25,596 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:29:25,596 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:29:25,597 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:29:25,598 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:29:25,599 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:29:25,601 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:29:25,601 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:29:25,602 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:29:25,604 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:29:25,605 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:29:25,607 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:29:25,607 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:29:25,608 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:29:25,611 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:29:25,612 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:29:25,614 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:29:25,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:29:25,617 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40874e95-efcb-4fbc-bf92-011e85a6ecb1/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:29:25,667 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:29:25,670 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:29:25,672 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:29:25,672 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:29:25,673 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:29:25,673 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:29:25,673 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:29:25,673 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:29:25,680 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:29:25,681 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:29:25,682 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:29:25,682 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:29:25,683 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:29:25,683 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:29:25,683 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:29:25,684 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:29:25,684 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:29:25,685 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:29:25,685 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:29:25,685 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:29:25,686 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:29:25,686 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:29:25,686 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:29:25,686 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:29:25,687 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:29:25,687 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:29:25,687 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:29:25,687 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:29:25,688 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:29:25,688 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:29:25,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:29:25,689 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:29:25,689 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:29:25,689 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:29:25,690 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:29:25,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:29:25,690 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:29:25,690 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:29:25,691 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:29:25,691 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_40874e95-efcb-4fbc-bf92-011e85a6ecb1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40874e95-efcb-4fbc-bf92-011e85a6ecb1/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f633d6d31a5ab4cff0448367c5d8cec927cf3a8f [2021-10-11 02:29:26,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:29:26,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:29:26,047 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:29:26,048 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:29:26,049 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:29:26,051 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40874e95-efcb-4fbc-bf92-011e85a6ecb1/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/loop-zilu/benchmark20_conjunctive.i [2021-10-11 02:29:26,132 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40874e95-efcb-4fbc-bf92-011e85a6ecb1/bin/utaipan-WLngWcDbfI/data/70a3bb31c/8222b0b3b8a74d9ebb483c0ff5cc06b7/FLAG67f7748a9 [2021-10-11 02:29:26,648 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:29:26,649 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40874e95-efcb-4fbc-bf92-011e85a6ecb1/sv-benchmarks/c/loop-zilu/benchmark20_conjunctive.i [2021-10-11 02:29:26,657 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40874e95-efcb-4fbc-bf92-011e85a6ecb1/bin/utaipan-WLngWcDbfI/data/70a3bb31c/8222b0b3b8a74d9ebb483c0ff5cc06b7/FLAG67f7748a9 [2021-10-11 02:29:27,022 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40874e95-efcb-4fbc-bf92-011e85a6ecb1/bin/utaipan-WLngWcDbfI/data/70a3bb31c/8222b0b3b8a74d9ebb483c0ff5cc06b7 [2021-10-11 02:29:27,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:29:27,028 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:29:27,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:27,041 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:29:27,045 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:29:27,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:27" (1/1) ... [2021-10-11 02:29:27,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f05a8ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:27, skipping insertion in model container [2021-10-11 02:29:27,052 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:27" (1/1) ... [2021-10-11 02:29:27,061 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:29:27,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:29:27,269 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_40874e95-efcb-4fbc-bf92-011e85a6ecb1/sv-benchmarks/c/loop-zilu/benchmark20_conjunctive.i[873,886] [2021-10-11 02:29:27,290 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:27,299 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:29:27,311 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_40874e95-efcb-4fbc-bf92-011e85a6ecb1/sv-benchmarks/c/loop-zilu/benchmark20_conjunctive.i[873,886] [2021-10-11 02:29:27,314 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:27,327 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:29:27,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:27 WrapperNode [2021-10-11 02:29:27,328 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:27,329 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:29:27,329 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:29:27,330 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:29:27,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:27" (1/1) ... [2021-10-11 02:29:27,347 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:27" (1/1) ... [2021-10-11 02:29:27,367 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:29:27,368 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:29:27,369 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:29:27,369 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:29:27,379 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:27" (1/1) ... [2021-10-11 02:29:27,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:27" (1/1) ... [2021-10-11 02:29:27,381 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:27" (1/1) ... [2021-10-11 02:29:27,382 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:27" (1/1) ... [2021-10-11 02:29:27,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:27" (1/1) ... [2021-10-11 02:29:27,390 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:27" (1/1) ... [2021-10-11 02:29:27,392 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:27" (1/1) ... [2021-10-11 02:29:27,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:29:27,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:29:27,396 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:29:27,396 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:29:27,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:27" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40874e95-efcb-4fbc-bf92-011e85a6ecb1/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 02:29:27,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:29:27,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:29:27,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:29:27,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:29:27,886 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:29:27,886 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-11 02:29:27,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:27 BoogieIcfgContainer [2021-10-11 02:29:27,889 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:29:27,890 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:29:27,891 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:29:27,908 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:29:27,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:29:27" (1/3) ... [2021-10-11 02:29:27,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@708bb2ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:29:27, skipping insertion in model container [2021-10-11 02:29:27,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:27" (2/3) ... [2021-10-11 02:29:27,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@708bb2ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:29:27, skipping insertion in model container [2021-10-11 02:29:27,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:27" (3/3) ... [2021-10-11 02:29:27,912 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark20_conjunctive.i [2021-10-11 02:29:27,934 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:29:27,938 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:29:27,948 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:29:27,971 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:29:27,971 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:29:27,971 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:29:27,971 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:29:27,972 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:29:27,972 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:29:27,972 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:29:27,972 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:29:27,986 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2021-10-11 02:29:27,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 02:29:27,992 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:27,992 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 02:29:27,993 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:27,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:28,000 INFO L82 PathProgramCache]: Analyzing trace with hash 59349214, now seen corresponding path program 1 times [2021-10-11 02:29:28,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:29:28,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324910908] [2021-10-11 02:29:28,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:29:28,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:28,192 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 02:29:28,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324910908] [2021-10-11 02:29:28,193 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:28,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:29:28,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361298613] [2021-10-11 02:29:28,199 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:29:28,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:29:28,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:29:28,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:29:28,216 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2021-10-11 02:29:28,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:28,286 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2021-10-11 02:29:28,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:29:28,288 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2021-10-11 02:29:28,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:28,295 INFO L225 Difference]: With dead ends: 21 [2021-10-11 02:29:28,295 INFO L226 Difference]: Without dead ends: 7 [2021-10-11 02:29:28,298 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 02:29:28,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-10-11 02:29:28,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-10-11 02:29:28,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-11 02:29:28,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2021-10-11 02:29:28,402 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2021-10-11 02:29:28,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:28,403 INFO L481 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2021-10-11 02:29:28,403 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:29:28,403 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2021-10-11 02:29:28,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 02:29:28,411 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:28,411 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 02:29:28,412 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:29:28,412 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:28,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:28,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1839242300, now seen corresponding path program 1 times [2021-10-11 02:29:28,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:29:28,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148466398] [2021-10-11 02:29:28,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:29:28,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:28,492 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 02:29:28,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148466398] [2021-10-11 02:29:28,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1817411017] [2021-10-11 02:29:28,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40874e95-efcb-4fbc-bf92-011e85a6ecb1/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 02:29:28,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:28,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-11 02:29:28,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:28,627 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 02:29:28,627 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:29:28,654 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-10-11 02:29:28,677 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 02:29:28,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1500565398] [2021-10-11 02:29:28,702 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2021-10-11 02:29:28,702 INFO L166 IcfgInterpreter]: Building call graph [2021-10-11 02:29:28,707 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-11 02:29:28,714 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-11 02:29:28,715 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-11 02:29:29,258 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-11 02:29:29,417 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-10-11 02:29:29,633 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2021-10-11 02:29:29,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2021-10-11 02:29:29,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5, 5] total 10 [2021-10-11 02:29:29,637 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522936483] [2021-10-11 02:29:29,637 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:29:29,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:29:29,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:29:29,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-10-11 02:29:29,646 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 5 states. [2021-10-11 02:29:29,798 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2021-10-11 02:29:29,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:29,811 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2021-10-11 02:29:29,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:29:29,813 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2021-10-11 02:29:29,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:29,816 INFO L225 Difference]: With dead ends: 7 [2021-10-11 02:29:29,816 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:29:29,820 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-10-11 02:29:29,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:29:29,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:29:29,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:29:29,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:29:29,821 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2021-10-11 02:29:29,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:29,821 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:29:29,822 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:29:29,822 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:29:29,822 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:29:30,039 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-11 02:29:30,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:29:30,120 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:29:30,121 INFO L265 CegarLoopResult]: At program point L29(lines 19 30) the Hoare annotation is: true [2021-10-11 02:29:30,121 INFO L262 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2021-10-11 02:29:30,121 INFO L262 CegarLoopResult]: For program point L15(lines 15 17) no Hoare annotation was computed. [2021-10-11 02:29:30,122 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:29:30,122 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2021-10-11 02:29:30,124 INFO L258 CegarLoopResult]: At program point L24-2(lines 24 27) the Hoare annotation is: (and (<= |#t~string1.offset| 0) (<= 0 |#t~string0.base|) (<= 0 ULTIMATE.start_main_~i~0) (<= 0 ULTIMATE.start_main_~sum~0) (<= ULTIMATE.start_main_~n~0 100) (= |#NULL.base| 0) (<= 0 ULTIMATE.start_main_~n~0) (<= 0 |#t~string1.offset|) (= |#NULL.offset| 0) (= |#t~string0.offset| 0) (<= 0 |#t~string1.base|) (<= 0 |#StackHeapBarrier|)) [2021-10-11 02:29:30,124 INFO L262 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2021-10-11 02:29:30,124 INFO L262 CegarLoopResult]: For program point L14(lines 14 18) no Hoare annotation was computed. [2021-10-11 02:29:30,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:29:30 BoogieIcfgContainer [2021-10-11 02:29:30,157 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:29:30,158 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:29:30,158 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:29:30,158 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:29:30,159 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:27" (3/4) ... [2021-10-11 02:29:30,162 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:29:30,174 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-11 02:29:30,174 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-11 02:29:30,174 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:29:30,175 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:29:30,225 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40874e95-efcb-4fbc-bf92-011e85a6ecb1/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:29:30,226 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:29:30,227 INFO L168 Benchmark]: Toolchain (without parser) took 3198.52 ms. Allocated memory was 94.4 MB in the beginning and 132.1 MB in the end (delta: 37.7 MB). Free memory was 63.0 MB in the beginning and 58.1 MB in the end (delta: 4.9 MB). Peak memory consumption was 41.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:30,228 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 94.4 MB. Free memory is still 48.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:29:30,228 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.14 ms. Allocated memory was 94.4 MB in the beginning and 132.1 MB in the end (delta: 37.7 MB). Free memory was 62.7 MB in the beginning and 107.2 MB in the end (delta: -44.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:30,229 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.64 ms. Allocated memory is still 132.1 MB. Free memory was 106.8 MB in the beginning and 105.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:30,229 INFO L168 Benchmark]: Boogie Preprocessor took 25.90 ms. Allocated memory is still 132.1 MB. Free memory was 105.5 MB in the beginning and 104.8 MB in the end (delta: 765.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:29:30,230 INFO L168 Benchmark]: RCFGBuilder took 493.47 ms. Allocated memory is still 132.1 MB. Free memory was 104.8 MB in the beginning and 90.9 MB in the end (delta: 13.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:30,231 INFO L168 Benchmark]: TraceAbstraction took 2266.64 ms. Allocated memory is still 132.1 MB. Free memory was 90.4 MB in the beginning and 60.2 MB in the end (delta: 30.2 MB). Peak memory consumption was 32.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:30,231 INFO L168 Benchmark]: Witness Printer took 68.15 ms. Allocated memory is still 132.1 MB. Free memory was 60.2 MB in the beginning and 58.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:30,235 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 94.4 MB. Free memory is still 48.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 288.14 ms. Allocated memory was 94.4 MB in the beginning and 132.1 MB in the end (delta: 37.7 MB). Free memory was 62.7 MB in the beginning and 107.2 MB in the end (delta: -44.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.64 ms. Allocated memory is still 132.1 MB. Free memory was 106.8 MB in the beginning and 105.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.90 ms. Allocated memory is still 132.1 MB. Free memory was 105.5 MB in the beginning and 104.8 MB in the end (delta: 765.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 493.47 ms. Allocated memory is still 132.1 MB. Free memory was 104.8 MB in the beginning and 90.9 MB in the end (delta: 13.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2266.64 ms. Allocated memory is still 132.1 MB. Free memory was 90.4 MB in the beginning and 60.2 MB in the end (delta: 30.2 MB). Peak memory consumption was 32.1 MB. Max. memory is 16.1 GB. * Witness Printer took 68.15 ms. Allocated memory is still 132.1 MB. Free memory was 60.2 MB in the beginning and 58.1 MB in the end (delta: 2.2 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: 16]: 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: 24]: Loop Invariant Derived loop invariant: (((((((((("benchmark20_conjunctive.c" <= 0 && 0 <= "0") && 0 <= i) && 0 <= sum) && n <= 100) && #NULL == 0) && 0 <= n) && 0 <= "benchmark20_conjunctive.c") && #NULL == 0) && "0" == 0) && 0 <= "benchmark20_conjunctive.c") && 0 <= unknown-#StackHeapBarrier-unknown - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9 SDtfs, 11 SDslu, 11 SDs, 0 SdLazy, 18 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s 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, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 38 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 82 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 246 SizeOfPredicates, 4 NumberOfNonLiveVariables, 50 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/3 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: OVERALL_TIME[ms]: 557, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 5, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 7, TOOLS_POST_TIME[ms]: 187, 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: 7, TOOLS_QUANTIFIERELIM_TIME[ms]: 181, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 149, FLUID_QUERY_TIME[ms]: 4, FLUID_QUERIES: 19, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME[ms]: 0, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME[ms]: 300, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME[ms]: 15, DOMAIN_ISBOTTOM_APPLICATIONS: 5, DOMAIN_ISBOTTOM_TIME[ms]: 9, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 354, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 353, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, 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]: 2, REGEX_TO_DAG_TIME[ms]: 4, DAG_COMPRESSION_TIME[ms]: 7, DAG_COMPRESSION_PROCESSED_NODES: 33, DAG_COMPRESSION_RETAINED_NODES: 18, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...