./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark35_linear.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fedf25b9-82d0-43ee-be5c-41177e15ce45/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fedf25b9-82d0-43ee-be5c-41177e15ce45/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fedf25b9-82d0-43ee-be5c-41177e15ce45/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fedf25b9-82d0-43ee-be5c-41177e15ce45/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark35_linear.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fedf25b9-82d0-43ee-be5c-41177e15ce45/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fedf25b9-82d0-43ee-be5c-41177e15ce45/bin/utaipan-Q6hlc19bkW --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 85c19f871ad5ac1548d47246e44639a9c86d865b8cdbaf9d1178a047385625ae --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 14:30:56,431 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:30:56,434 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:30:56,461 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:30:56,461 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:30:56,462 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:30:56,464 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:30:56,466 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:30:56,468 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:30:56,469 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:30:56,470 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:30:56,471 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:30:56,472 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:30:56,473 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:30:56,474 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:30:56,476 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:30:56,477 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:30:56,478 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:30:56,480 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:30:56,482 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:30:56,483 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:30:56,485 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:30:56,486 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:30:56,487 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:30:56,492 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:30:56,492 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:30:56,493 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:30:56,494 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:30:56,494 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:30:56,495 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:30:56,496 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:30:56,497 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:30:56,498 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:30:56,499 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:30:56,500 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:30:56,501 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:30:56,502 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:30:56,502 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:30:56,503 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:30:56,504 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:30:56,505 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:30:56,506 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fedf25b9-82d0-43ee-be5c-41177e15ce45/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 14:30:56,529 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:30:56,530 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:30:56,530 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:30:56,531 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:30:56,531 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:30:56,532 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:30:56,532 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:30:56,532 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:30:56,533 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:30:56,533 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:30:56,533 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:30:56,533 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:30:56,534 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:30:56,534 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:30:56,534 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:30:56,535 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:30:56,535 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:30:56,535 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:30:56,536 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:30:56,536 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:30:56,537 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:30:56,537 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:30:56,537 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:30:56,537 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:30:56,538 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:30:56,538 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:30:56,538 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:30:56,539 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:30:56,539 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:30:56,539 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:30:56,540 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:30:56,540 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:30:56,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:30:56,540 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:30:56,541 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:30:56,541 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:30:56,541 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:30:56,542 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:30:56,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:30:56,542 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:30:56,542 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:30:56,543 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_fedf25b9-82d0-43ee-be5c-41177e15ce45/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fedf25b9-82d0-43ee-be5c-41177e15ce45/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85c19f871ad5ac1548d47246e44639a9c86d865b8cdbaf9d1178a047385625ae [2022-11-23 14:30:56,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:30:56,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:30:56,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:30:56,854 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:30:56,855 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:30:56,856 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fedf25b9-82d0-43ee-be5c-41177e15ce45/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/loop-zilu/benchmark35_linear.i [2022-11-23 14:30:59,969 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:31:00,180 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:31:00,181 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fedf25b9-82d0-43ee-be5c-41177e15ce45/sv-benchmarks/c/loop-zilu/benchmark35_linear.i [2022-11-23 14:31:00,187 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fedf25b9-82d0-43ee-be5c-41177e15ce45/bin/utaipan-Q6hlc19bkW/data/1da50e124/a980b62ec9a3424da2ef84d306cd99a7/FLAG9a68682f3 [2022-11-23 14:31:00,203 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fedf25b9-82d0-43ee-be5c-41177e15ce45/bin/utaipan-Q6hlc19bkW/data/1da50e124/a980b62ec9a3424da2ef84d306cd99a7 [2022-11-23 14:31:00,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:31:00,208 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:31:00,210 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:31:00,210 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:31:00,221 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:31:00,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:31:00" (1/1) ... [2022-11-23 14:31:00,224 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15983b16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:00, skipping insertion in model container [2022-11-23 14:31:00,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:31:00" (1/1) ... [2022-11-23 14:31:00,233 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:31:00,248 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:31:00,427 WARN L237 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_fedf25b9-82d0-43ee-be5c-41177e15ce45/sv-benchmarks/c/loop-zilu/benchmark35_linear.i[868,881] [2022-11-23 14:31:00,438 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:31:00,448 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:31:00,460 WARN L237 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_fedf25b9-82d0-43ee-be5c-41177e15ce45/sv-benchmarks/c/loop-zilu/benchmark35_linear.i[868,881] [2022-11-23 14:31:00,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:31:00,480 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:31:00,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:00 WrapperNode [2022-11-23 14:31:00,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:31:00,483 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:31:00,483 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:31:00,483 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:31:00,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:00" (1/1) ... [2022-11-23 14:31:00,499 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:00" (1/1) ... [2022-11-23 14:31:00,519 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 26 [2022-11-23 14:31:00,519 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:31:00,520 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:31:00,520 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:31:00,521 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:31:00,528 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:00" (1/1) ... [2022-11-23 14:31:00,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:00" (1/1) ... [2022-11-23 14:31:00,530 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:00" (1/1) ... [2022-11-23 14:31:00,530 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:00" (1/1) ... [2022-11-23 14:31:00,532 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:00" (1/1) ... [2022-11-23 14:31:00,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:00" (1/1) ... [2022-11-23 14:31:00,537 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:00" (1/1) ... [2022-11-23 14:31:00,538 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:00" (1/1) ... [2022-11-23 14:31:00,539 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:31:00,540 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:31:00,541 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:31:00,541 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:31:00,550 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:00" (1/1) ... [2022-11-23 14:31:00,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:31:00,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fedf25b9-82d0-43ee-be5c-41177e15ce45/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:31:00,590 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fedf25b9-82d0-43ee-be5c-41177e15ce45/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:31:00,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fedf25b9-82d0-43ee-be5c-41177e15ce45/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:31:00,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:31:00,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:31:00,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:31:00,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:31:00,721 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:31:00,723 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:31:00,917 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:31:00,955 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:31:00,955 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 14:31:00,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:31:00 BoogieIcfgContainer [2022-11-23 14:31:00,965 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:31:00,969 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:31:00,969 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:31:00,972 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:31:00,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:31:00" (1/3) ... [2022-11-23 14:31:00,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5597da7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:31:00, skipping insertion in model container [2022-11-23 14:31:00,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:00" (2/3) ... [2022-11-23 14:31:00,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5597da7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:31:00, skipping insertion in model container [2022-11-23 14:31:00,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:31:00" (3/3) ... [2022-11-23 14:31:00,992 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark35_linear.i [2022-11-23 14:31:01,030 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:31:01,031 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:31:01,150 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:31:01,159 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2c955c6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:31:01,163 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:31:01,181 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:31:01,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 14:31:01,205 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:31:01,205 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 14:31:01,208 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:31:01,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:31:01,215 INFO L85 PathProgramCache]: Analyzing trace with hash 59349214, now seen corresponding path program 1 times [2022-11-23 14:31:01,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:31:01,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513097279] [2022-11-23 14:31:01,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:31:01,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:31:01,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:31:01,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:31:01,496 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:31:01,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513097279] [2022-11-23 14:31:01,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513097279] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:31:01,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:31:01,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:31:01,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28555675] [2022-11-23 14:31:01,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:31:01,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:31:01,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:31:01,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:31:01,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:31:01,541 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:31:01,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:31:01,624 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2022-11-23 14:31:01,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:31:01,627 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-23 14:31:01,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:31:01,633 INFO L225 Difference]: With dead ends: 14 [2022-11-23 14:31:01,633 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 14:31:01,636 INFO L412 NwaCegarLoop]: 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 [2022-11-23 14:31:01,640 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 7 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:31:01,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:31:01,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 14:31:01,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 14:31:01,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:31:01,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 14:31:01,668 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2022-11-23 14:31:01,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:31:01,669 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 14:31:01,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:31:01,670 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 14:31:01,670 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 14:31:01,673 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 14:31:01,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:31:01,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 14:31:01,687 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 14:31:01,688 INFO L899 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2022-11-23 14:31:01,688 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2022-11-23 14:31:01,688 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-23 14:31:01,689 INFO L902 garLoopResultBuilder]: At program point L26(lines 19 27) the Hoare annotation is: true [2022-11-23 14:31:01,689 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2022-11-23 14:31:01,689 INFO L895 garLoopResultBuilder]: At program point L22-2(lines 22 24) the Hoare annotation is: (< 0 (+ |ULTIMATE.start_main_~x~0#1| 1)) [2022-11-23 14:31:01,690 INFO L899 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2022-11-23 14:31:01,690 INFO L899 garLoopResultBuilder]: For program point L14(lines 14 18) no Hoare annotation was computed. [2022-11-23 14:31:01,694 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 14:31:01,698 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:31:01,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:31:01 BoogieIcfgContainer [2022-11-23 14:31:01,719 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:31:01,721 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:31:01,722 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:31:01,722 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:31:01,723 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:31:00" (3/4) ... [2022-11-23 14:31:01,728 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 14:31:01,744 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-23 14:31:01,745 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-23 14:31:01,745 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-23 14:31:01,746 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 14:31:01,806 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fedf25b9-82d0-43ee-be5c-41177e15ce45/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 14:31:01,806 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:31:01,807 INFO L158 Benchmark]: Toolchain (without parser) took 1599.38ms. Allocated memory is still 222.3MB. Free memory was 179.1MB in the beginning and 128.2MB in the end (delta: 50.9MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2022-11-23 14:31:01,808 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 151.0MB. Free memory is still 95.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:31:01,808 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.96ms. Allocated memory is still 222.3MB. Free memory was 178.5MB in the beginning and 168.6MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 14:31:01,809 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.21ms. Allocated memory is still 222.3MB. Free memory was 168.6MB in the beginning and 167.7MB in the end (delta: 952.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:31:01,809 INFO L158 Benchmark]: Boogie Preprocessor took 19.21ms. Allocated memory is still 222.3MB. Free memory was 167.1MB in the beginning and 166.5MB in the end (delta: 572.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:31:01,810 INFO L158 Benchmark]: RCFGBuilder took 425.10ms. Allocated memory is still 222.3MB. Free memory was 166.5MB in the beginning and 156.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 14:31:01,810 INFO L158 Benchmark]: TraceAbstraction took 750.86ms. Allocated memory is still 222.3MB. Free memory was 155.4MB in the beginning and 130.3MB in the end (delta: 25.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-23 14:31:01,811 INFO L158 Benchmark]: Witness Printer took 85.19ms. Allocated memory is still 222.3MB. Free memory was 130.3MB in the beginning and 128.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:31:01,824 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 151.0MB. Free memory is still 95.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 271.96ms. Allocated memory is still 222.3MB. Free memory was 178.5MB in the beginning and 168.6MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.21ms. Allocated memory is still 222.3MB. Free memory was 168.6MB in the beginning and 167.7MB in the end (delta: 952.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.21ms. Allocated memory is still 222.3MB. Free memory was 167.1MB in the beginning and 166.5MB in the end (delta: 572.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 425.10ms. Allocated memory is still 222.3MB. Free memory was 166.5MB in the beginning and 156.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 750.86ms. Allocated memory is still 222.3MB. Free memory was 155.4MB in the beginning and 130.3MB in the end (delta: 25.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 85.19ms. Allocated memory is still 222.3MB. Free memory was 130.3MB in the beginning and 128.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 16]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 3 mSDtfsCounter, 12 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 6 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 < x + 1 RESULT: Ultimate proved your program to be correct! [2022-11-23 14:31:01,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fedf25b9-82d0-43ee-be5c-41177e15ce45/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE