./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops-crafted-1/sumt3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_ec01536b-381c-4f06-b51d-a2eda9fc2008/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec01536b-381c-4f06-b51d-a2eda9fc2008/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec01536b-381c-4f06-b51d-a2eda9fc2008/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec01536b-381c-4f06-b51d-a2eda9fc2008/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops-crafted-1/sumt3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec01536b-381c-4f06-b51d-a2eda9fc2008/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec01536b-381c-4f06-b51d-a2eda9fc2008/bin/utaipan-gh47qXpMRh --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 e30b5fab1e4d82c0eedde50f4c0c38801322108217030da03826d472d6d39908 --- 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-2329fc7 [2022-12-14 08:21:59,950 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:21:59,951 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:21:59,971 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:21:59,971 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:21:59,972 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:21:59,973 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:21:59,975 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:21:59,976 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:21:59,977 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:21:59,978 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:21:59,979 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:21:59,980 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:21:59,981 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:21:59,982 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:21:59,983 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:21:59,984 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:21:59,984 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:21:59,986 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:21:59,988 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:21:59,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:21:59,990 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:21:59,991 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:21:59,992 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:21:59,995 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:21:59,996 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:21:59,996 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:21:59,997 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:21:59,997 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:21:59,998 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:21:59,998 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:21:59,999 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:22:00,000 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:22:00,000 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:22:00,001 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:22:00,002 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:22:00,002 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:22:00,003 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:22:00,003 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:22:00,004 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:22:00,004 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:22:00,005 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec01536b-381c-4f06-b51d-a2eda9fc2008/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 08:22:00,027 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:22:00,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:22:00,028 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:22:00,028 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:22:00,028 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:22:00,029 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:22:00,029 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:22:00,029 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:22:00,029 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:22:00,029 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:22:00,029 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:22:00,030 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:22:00,030 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:22:00,030 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:22:00,030 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:22:00,030 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:22:00,030 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:22:00,030 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:22:00,031 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:22:00,031 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 08:22:00,031 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:22:00,031 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 08:22:00,031 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:22:00,032 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:22:00,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:22:00,032 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:22:00,032 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 08:22:00,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:22:00,032 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:22:00,032 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:22:00,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:22:00,033 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:22:00,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:22:00,033 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:22:00,033 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:22:00,033 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:22:00,034 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:22:00,034 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:22:00,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:22:00,034 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:22:00,034 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:22:00,034 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_ec01536b-381c-4f06-b51d-a2eda9fc2008/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec01536b-381c-4f06-b51d-a2eda9fc2008/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e30b5fab1e4d82c0eedde50f4c0c38801322108217030da03826d472d6d39908 [2022-12-14 08:22:00,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:22:00,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:22:00,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:22:00,244 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:22:00,244 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:22:00,245 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec01536b-381c-4f06-b51d-a2eda9fc2008/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/loops-crafted-1/sumt3.c [2022-12-14 08:22:02,909 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:22:03,017 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:22:03,017 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec01536b-381c-4f06-b51d-a2eda9fc2008/sv-benchmarks/c/loops-crafted-1/sumt3.c [2022-12-14 08:22:03,021 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec01536b-381c-4f06-b51d-a2eda9fc2008/bin/utaipan-gh47qXpMRh/data/e37679c67/ac43176491cb45b1af02cea331234daa/FLAGbfbdea818 [2022-12-14 08:22:03,035 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec01536b-381c-4f06-b51d-a2eda9fc2008/bin/utaipan-gh47qXpMRh/data/e37679c67/ac43176491cb45b1af02cea331234daa [2022-12-14 08:22:03,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:22:03,039 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:22:03,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:22:03,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:22:03,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:22:03,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:22:03" (1/1) ... [2022-12-14 08:22:03,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41191008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:22:03, skipping insertion in model container [2022-12-14 08:22:03,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:22:03" (1/1) ... [2022-12-14 08:22:03,053 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:22:03,066 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:22:03,179 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_ec01536b-381c-4f06-b51d-a2eda9fc2008/sv-benchmarks/c/loops-crafted-1/sumt3.c[403,416] [2022-12-14 08:22:03,190 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:22:03,198 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:22:03,207 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_ec01536b-381c-4f06-b51d-a2eda9fc2008/sv-benchmarks/c/loops-crafted-1/sumt3.c[403,416] [2022-12-14 08:22:03,210 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:22:03,222 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:22:03,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:22:03 WrapperNode [2022-12-14 08:22:03,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:22:03,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:22:03,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:22:03,224 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:22:03,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:22:03" (1/1) ... [2022-12-14 08:22:03,233 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:22:03" (1/1) ... [2022-12-14 08:22:03,247 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 52 [2022-12-14 08:22:03,247 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:22:03,247 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:22:03,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:22:03,248 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:22:03,254 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:22:03" (1/1) ... [2022-12-14 08:22:03,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:22:03" (1/1) ... [2022-12-14 08:22:03,255 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:22:03" (1/1) ... [2022-12-14 08:22:03,255 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:22:03" (1/1) ... [2022-12-14 08:22:03,257 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:22:03" (1/1) ... [2022-12-14 08:22:03,259 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:22:03" (1/1) ... [2022-12-14 08:22:03,260 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:22:03" (1/1) ... [2022-12-14 08:22:03,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:22:03" (1/1) ... [2022-12-14 08:22:03,262 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:22:03,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:22:03,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:22:03,263 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:22:03,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:22:03" (1/1) ... [2022-12-14 08:22:03,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:22:03,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec01536b-381c-4f06-b51d-a2eda9fc2008/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:22:03,291 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec01536b-381c-4f06-b51d-a2eda9fc2008/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:22:03,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec01536b-381c-4f06-b51d-a2eda9fc2008/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:22:03,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:22:03,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 08:22:03,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:22:03,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:22:03,382 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:22:03,384 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:22:03,479 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:22:03,519 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:22:03,520 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 08:22:03,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:22:03 BoogieIcfgContainer [2022-12-14 08:22:03,521 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:22:03,523 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:22:03,523 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:22:03,525 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:22:03,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:22:03" (1/3) ... [2022-12-14 08:22:03,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fd372bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:22:03, skipping insertion in model container [2022-12-14 08:22:03,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:22:03" (2/3) ... [2022-12-14 08:22:03,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fd372bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:22:03, skipping insertion in model container [2022-12-14 08:22:03,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:22:03" (3/3) ... [2022-12-14 08:22:03,527 INFO L112 eAbstractionObserver]: Analyzing ICFG sumt3.c [2022-12-14 08:22:03,541 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:22:03,541 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 08:22:03,574 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:22:03,579 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;@3f470579, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:22:03,579 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 08:22:03,582 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) [2022-12-14 08:22:03,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 08:22:03,586 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:22:03,587 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 08:22:03,587 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:22:03,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:22:03,591 INFO L85 PathProgramCache]: Analyzing trace with hash 72292347, now seen corresponding path program 1 times [2022-12-14 08:22:03,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:22:03,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755842567] [2022-12-14 08:22:03,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:22:03,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:22:03,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:22:03,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:22:03,926 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:22:03,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755842567] [2022-12-14 08:22:03,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755842567] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:22:03,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:22:03,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 08:22:03,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75521684] [2022-12-14 08:22:03,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:22:03,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:22:03,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:22:03,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:22:03,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:22:03,956 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) [2022-12-14 08:22:04,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:22:04,012 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2022-12-14 08:22:04,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 08:22:04,014 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 [2022-12-14 08:22:04,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:22:04,020 INFO L225 Difference]: With dead ends: 21 [2022-12-14 08:22:04,020 INFO L226 Difference]: Without dead ends: 7 [2022-12-14 08:22:04,022 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 [2022-12-14 08:22:04,025 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 9 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:22:04,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 13 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:22:04,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2022-12-14 08:22:04,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2022-12-14 08:22:04,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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) [2022-12-14 08:22:04,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2022-12-14 08:22:04,048 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2022-12-14 08:22:04,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:22:04,049 INFO L495 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2022-12-14 08:22:04,049 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) [2022-12-14 08:22:04,049 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2022-12-14 08:22:04,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 08:22:04,049 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:22:04,049 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 08:22:04,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 08:22:04,050 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:22:04,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:22:04,050 INFO L85 PathProgramCache]: Analyzing trace with hash -2053741194, now seen corresponding path program 1 times [2022-12-14 08:22:04,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:22:04,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478948356] [2022-12-14 08:22:04,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:22:04,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:22:04,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:22:04,417 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:22:04,418 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:22:04,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478948356] [2022-12-14 08:22:04,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478948356] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:22:04,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686076270] [2022-12-14 08:22:04,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:22:04,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:22:04,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec01536b-381c-4f06-b51d-a2eda9fc2008/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:22:04,420 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec01536b-381c-4f06-b51d-a2eda9fc2008/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:22:04,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec01536b-381c-4f06-b51d-a2eda9fc2008/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 08:22:04,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:22:04,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-14 08:22:04,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:22:04,543 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:22:04,543 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:22:05,206 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 08:22:05,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [686076270] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-14 08:22:05,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 08:22:05,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 8 [2022-12-14 08:22:05,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702610512] [2022-12-14 08:22:05,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:22:05,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:22:05,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:22:05,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:22:05,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-12-14 08:22:05,209 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:22:05,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:22:05,228 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2022-12-14 08:22:05,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:22:05,228 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-12-14 08:22:05,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:22:05,229 INFO L225 Difference]: With dead ends: 7 [2022-12-14 08:22:05,229 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 08:22:05,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-12-14 08:22:05,231 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 1 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:22:05,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:22:05,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 08:22:05,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 08:22:05,232 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) [2022-12-14 08:22:05,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 08:22:05,233 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2022-12-14 08:22:05,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:22:05,233 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 08:22:05,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:22:05,233 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 08:22:05,233 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 08:22:05,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 08:22:05,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec01536b-381c-4f06-b51d-a2eda9fc2008/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 08:22:05,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec01536b-381c-4f06-b51d-a2eda9fc2008/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:22:05,439 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 08:22:05,448 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 08:22:05,448 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2022-12-14 08:22:05,448 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 08:22:05,448 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 16 36) the Hoare annotation is: true [2022-12-14 08:22:05,448 INFO L899 garLoopResultBuilder]: For program point L9(lines 9 11) no Hoare annotation was computed. [2022-12-14 08:22:05,449 INFO L895 garLoopResultBuilder]: At program point L9-2(lines 8 13) the Hoare annotation is: (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0)) [2022-12-14 08:22:05,449 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2022-12-14 08:22:05,449 INFO L895 garLoopResultBuilder]: At program point L24-2(lines 24 33) the Hoare annotation is: (= (mod |ULTIMATE.start_main_~l~0#1| 4294967296) (mod (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~j~0#1| |ULTIMATE.start_main_~k~0#1|) 4294967296)) [2022-12-14 08:22:05,449 INFO L899 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2022-12-14 08:22:05,452 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 08:22:05,454 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 08:22:05,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 08:22:05 BoogieIcfgContainer [2022-12-14 08:22:05,468 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 08:22:05,468 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 08:22:05,468 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 08:22:05,469 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 08:22:05,469 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:22:03" (3/4) ... [2022-12-14 08:22:05,472 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 08:22:05,481 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-12-14 08:22:05,481 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-12-14 08:22:05,481 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-14 08:22:05,481 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 08:22:05,481 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 08:22:05,513 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec01536b-381c-4f06-b51d-a2eda9fc2008/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 08:22:05,513 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 08:22:05,514 INFO L158 Benchmark]: Toolchain (without parser) took 2474.80ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 100.0MB in the beginning and 61.9MB in the end (delta: 38.1MB). Peak memory consumption was 66.9MB. Max. memory is 16.1GB. [2022-12-14 08:22:05,514 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 136.3MB. Free memory is still 107.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:22:05,514 INFO L158 Benchmark]: CACSL2BoogieTranslator took 182.67ms. Allocated memory is still 136.3MB. Free memory was 99.6MB in the beginning and 89.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 08:22:05,515 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.72ms. Allocated memory is still 136.3MB. Free memory was 89.1MB in the beginning and 87.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:22:05,515 INFO L158 Benchmark]: Boogie Preprocessor took 14.98ms. Allocated memory is still 136.3MB. Free memory was 87.9MB in the beginning and 86.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:22:05,515 INFO L158 Benchmark]: RCFGBuilder took 258.48ms. Allocated memory is still 136.3MB. Free memory was 86.6MB in the beginning and 73.6MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 08:22:05,516 INFO L158 Benchmark]: TraceAbstraction took 1944.70ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 72.8MB in the beginning and 64.0MB in the end (delta: 8.8MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. [2022-12-14 08:22:05,516 INFO L158 Benchmark]: Witness Printer took 44.80ms. Allocated memory is still 163.6MB. Free memory was 64.0MB in the beginning and 61.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:22:05,518 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 136.3MB. Free memory is still 107.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 182.67ms. Allocated memory is still 136.3MB. Free memory was 99.6MB in the beginning and 89.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.72ms. Allocated memory is still 136.3MB. Free memory was 89.1MB in the beginning and 87.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 14.98ms. Allocated memory is still 136.3MB. Free memory was 87.9MB in the beginning and 86.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 258.48ms. Allocated memory is still 136.3MB. Free memory was 86.6MB in the beginning and 73.6MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1944.70ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 72.8MB in the beginning and 64.0MB in the end (delta: 8.8MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. * Witness Printer took 44.80ms. Allocated memory is still 163.6MB. Free memory was 64.0MB in the beginning and 61.9MB 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: 10]: 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: 1.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 6 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 9 NumberOfFragments, 15 HoareAnnotationTreeSize, 3 FomulaSimplifications, 42 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 160 SizeOfPredicates, 5 NumberOfNonLiveVariables, 66 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 1/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: l % 4294967296 == (i + j + k) % 4294967296 - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: !(cond == 0) RESULT: Ultimate proved your program to be correct! [2022-12-14 08:22:05,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec01536b-381c-4f06-b51d-a2eda9fc2008/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE