./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi009_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de2f73-b841-4d62-865f-8457d83c5fc9/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de2f73-b841-4d62-865f-8457d83c5fc9/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_f0de2f73-b841-4d62-865f-8457d83c5fc9/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de2f73-b841-4d62-865f-8457d83c5fc9/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi009_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de2f73-b841-4d62-865f-8457d83c5fc9/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de2f73-b841-4d62-865f-8457d83c5fc9/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6efd977ba774fd706e089a911dcd82549d76c764859cf8b84047b990ab28d067 --- 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 15:25:14,345 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:25:14,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:25:14,375 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:25:14,376 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:25:14,380 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:25:14,384 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:25:14,388 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:25:14,390 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:25:14,396 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:25:14,397 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:25:14,399 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:25:14,400 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:25:14,403 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:25:14,406 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:25:14,408 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:25:14,410 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:25:14,412 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:25:14,414 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:25:14,421 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:25:14,423 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:25:14,425 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:25:14,427 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:25:14,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:25:14,438 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:25:14,440 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:25:14,440 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:25:14,442 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:25:14,443 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:25:14,444 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:25:14,445 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:25:14,447 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:25:14,449 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:25:14,450 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:25:14,451 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:25:14,451 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:25:14,452 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:25:14,453 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:25:14,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:25:14,454 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:25:14,455 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:25:14,456 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de2f73-b841-4d62-865f-8457d83c5fc9/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-23 15:25:14,502 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:25:14,506 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:25:14,507 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:25:14,507 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:25:14,508 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:25:14,509 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:25:14,509 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:25:14,509 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:25:14,509 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:25:14,510 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:25:14,511 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:25:14,511 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:25:14,512 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:25:14,512 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:25:14,512 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:25:14,512 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:25:14,513 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:25:14,513 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:25:14,514 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:25:14,515 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:25:14,515 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:25:14,515 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:25:14,515 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:25:14,516 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:25:14,516 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:25:14,516 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:25:14,517 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:25:14,517 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 15:25:14,518 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:25:14,518 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:25:14,518 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:25:14,519 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:25:14,519 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:25:14,519 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:25:14,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:25:14,520 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:25:14,520 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:25:14,521 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:25:14,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:25:14,522 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:25:14,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:25:14,523 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:25:14,523 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:25:14,523 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_f0de2f73-b841-4d62-865f-8457d83c5fc9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de2f73-b841-4d62-865f-8457d83c5fc9/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6efd977ba774fd706e089a911dcd82549d76c764859cf8b84047b990ab28d067 [2022-11-23 15:25:14,774 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:25:14,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:25:14,810 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:25:14,811 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:25:14,813 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:25:14,814 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de2f73-b841-4d62-865f-8457d83c5fc9/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/pthread-wmm/rfi009_rmo.oepc.i [2022-11-23 15:25:17,914 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:25:18,146 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:25:18,147 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de2f73-b841-4d62-865f-8457d83c5fc9/sv-benchmarks/c/pthread-wmm/rfi009_rmo.oepc.i [2022-11-23 15:25:18,164 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de2f73-b841-4d62-865f-8457d83c5fc9/bin/utaipan-Q6hlc19bkW/data/2bdbed69c/ef2f63b2022d4bd496ccffaedca41e90/FLAG9829eda04 [2022-11-23 15:25:18,191 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de2f73-b841-4d62-865f-8457d83c5fc9/bin/utaipan-Q6hlc19bkW/data/2bdbed69c/ef2f63b2022d4bd496ccffaedca41e90 [2022-11-23 15:25:18,197 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:25:18,199 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:25:18,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:25:18,203 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:25:18,208 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:25:18,209 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:25:18" (1/1) ... [2022-11-23 15:25:18,210 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@112c6436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:25:18, skipping insertion in model container [2022-11-23 15:25:18,210 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:25:18" (1/1) ... [2022-11-23 15:25:18,218 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:25:18,279 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:25:18,520 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_f0de2f73-b841-4d62-865f-8457d83c5fc9/sv-benchmarks/c/pthread-wmm/rfi009_rmo.oepc.i[992,1005] [2022-11-23 15:25:18,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:25:18,865 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:25:18,880 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_f0de2f73-b841-4d62-865f-8457d83c5fc9/sv-benchmarks/c/pthread-wmm/rfi009_rmo.oepc.i[992,1005] [2022-11-23 15:25:18,964 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:25:19,022 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:25:19,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:25:19 WrapperNode [2022-11-23 15:25:19,023 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:25:19,024 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:25:19,024 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:25:19,024 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:25:19,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:25:19" (1/1) ... [2022-11-23 15:25:19,062 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:25:19" (1/1) ... [2022-11-23 15:25:19,085 INFO L138 Inliner]: procedures = 176, calls = 73, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 137 [2022-11-23 15:25:19,085 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:25:19,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:25:19,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:25:19,087 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:25:19,096 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:25:19" (1/1) ... [2022-11-23 15:25:19,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:25:19" (1/1) ... [2022-11-23 15:25:19,101 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:25:19" (1/1) ... [2022-11-23 15:25:19,102 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:25:19" (1/1) ... [2022-11-23 15:25:19,112 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:25:19" (1/1) ... [2022-11-23 15:25:19,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:25:19" (1/1) ... [2022-11-23 15:25:19,117 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:25:19" (1/1) ... [2022-11-23 15:25:19,119 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:25:19" (1/1) ... [2022-11-23 15:25:19,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:25:19,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:25:19,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:25:19,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:25:19,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:25:19" (1/1) ... [2022-11-23 15:25:19,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:25:19,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de2f73-b841-4d62-865f-8457d83c5fc9/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:25:19,166 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de2f73-b841-4d62-865f-8457d83c5fc9/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:25:19,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de2f73-b841-4d62-865f-8457d83c5fc9/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:25:19,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:25:19,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:25:19,238 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-23 15:25:19,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:25:19,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:25:19,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:25:19,238 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-23 15:25:19,238 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-23 15:25:19,238 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-23 15:25:19,239 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-23 15:25:19,239 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-23 15:25:19,239 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-23 15:25:19,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:25:19,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-23 15:25:19,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:25:19,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:25:19,241 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 15:25:19,393 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:25:19,396 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:25:19,983 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:25:20,315 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:25:20,315 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 15:25:20,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:25:20 BoogieIcfgContainer [2022-11-23 15:25:20,318 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:25:20,320 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:25:20,321 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:25:20,324 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:25:20,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:25:18" (1/3) ... [2022-11-23 15:25:20,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc762cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:25:20, skipping insertion in model container [2022-11-23 15:25:20,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:25:19" (2/3) ... [2022-11-23 15:25:20,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc762cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:25:20, skipping insertion in model container [2022-11-23 15:25:20,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:25:20" (3/3) ... [2022-11-23 15:25:20,327 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi009_rmo.oepc.i [2022-11-23 15:25:20,337 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 15:25:20,348 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:25:20,348 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-23 15:25:20,348 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 15:25:20,413 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 15:25:20,448 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 15:25:20,462 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 145 places, 137 transitions, 289 flow [2022-11-23 15:25:20,465 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 145 places, 137 transitions, 289 flow [2022-11-23 15:25:20,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 137 transitions, 289 flow [2022-11-23 15:25:20,524 INFO L130 PetriNetUnfolder]: 2/134 cut-off events. [2022-11-23 15:25:20,524 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 15:25:20,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 134 events. 2/134 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2022-11-23 15:25:20,532 INFO L119 LiptonReduction]: Number of co-enabled transitions 2366 [2022-11-23 15:25:31,344 INFO L134 LiptonReduction]: Checked pairs total: 8264 [2022-11-23 15:25:31,344 INFO L136 LiptonReduction]: Total number of compositions: 123 [2022-11-23 15:25:31,353 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 29 transitions, 73 flow [2022-11-23 15:25:31,449 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1102 states, 1076 states have (on average 3.5185873605947955) internal successors, (3786), 1101 states have internal predecessors, (3786), 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 15:25:31,469 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:25:31,475 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;@435ccf3c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:25:31,476 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-23 15:25:31,481 INFO L276 IsEmpty]: Start isEmpty. Operand has 1102 states, 1076 states have (on average 3.5185873605947955) internal successors, (3786), 1101 states have internal predecessors, (3786), 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 15:25:31,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 15:25:31,487 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:25:31,487 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 15:25:31,488 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 15:25:31,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:25:31,493 INFO L85 PathProgramCache]: Analyzing trace with hash 22906003, now seen corresponding path program 1 times [2022-11-23 15:25:31,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:25:31,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268807180] [2022-11-23 15:25:31,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:25:31,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:25:31,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:25:31,907 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 15:25:31,908 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:25:31,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268807180] [2022-11-23 15:25:31,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268807180] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:25:31,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:25:31,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 15:25:31,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472304765] [2022-11-23 15:25:31,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:25:31,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:25:31,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:25:31,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:25:31,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:25:31,952 INFO L87 Difference]: Start difference. First operand has 1102 states, 1076 states have (on average 3.5185873605947955) internal successors, (3786), 1101 states have internal predecessors, (3786), 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 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 15:25:32,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:25:32,147 INFO L93 Difference]: Finished difference Result 606 states and 1709 transitions. [2022-11-23 15:25:32,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:25:32,151 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2022-11-23 15:25:32,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:25:32,179 INFO L225 Difference]: With dead ends: 606 [2022-11-23 15:25:32,179 INFO L226 Difference]: Without dead ends: 606 [2022-11-23 15:25:32,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:25:32,182 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 13 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:25:32,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 4 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:25:32,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2022-11-23 15:25:32,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 606. [2022-11-23 15:25:32,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 588 states have (on average 2.9064625850340136) internal successors, (1709), 605 states have internal predecessors, (1709), 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 15:25:32,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 1709 transitions. [2022-11-23 15:25:32,269 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 1709 transitions. Word has length 4 [2022-11-23 15:25:32,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:25:32,269 INFO L495 AbstractCegarLoop]: Abstraction has 606 states and 1709 transitions. [2022-11-23 15:25:32,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 15:25:32,270 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 1709 transitions. [2022-11-23 15:25:32,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 15:25:32,271 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:25:32,272 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:25:32,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:25:32,272 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 15:25:32,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:25:32,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1896963139, now seen corresponding path program 1 times [2022-11-23 15:25:32,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:25:32,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075915477] [2022-11-23 15:25:32,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:25:32,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:25:32,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:25:32,519 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 15:25:32,519 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:25:32,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075915477] [2022-11-23 15:25:32,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075915477] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:25:32,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:25:32,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:25:32,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133274517] [2022-11-23 15:25:32,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:25:32,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:25:32,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:25:32,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:25:32,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:25:32,533 INFO L87 Difference]: Start difference. First operand 606 states and 1709 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 15:25:32,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:25:32,663 INFO L93 Difference]: Finished difference Result 474 states and 1361 transitions. [2022-11-23 15:25:32,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:25:32,664 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2022-11-23 15:25:32,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:25:32,667 INFO L225 Difference]: With dead ends: 474 [2022-11-23 15:25:32,668 INFO L226 Difference]: Without dead ends: 474 [2022-11-23 15:25:32,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:25:32,669 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 25 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:25:32,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 8 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:25:32,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2022-11-23 15:25:32,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 474. [2022-11-23 15:25:32,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 468 states have (on average 2.908119658119658) internal successors, (1361), 473 states have internal predecessors, (1361), 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 15:25:32,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 1361 transitions. [2022-11-23 15:25:32,695 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 1361 transitions. Word has length 10 [2022-11-23 15:25:32,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:25:32,696 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 1361 transitions. [2022-11-23 15:25:32,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 15:25:32,696 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 1361 transitions. [2022-11-23 15:25:32,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 15:25:32,698 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:25:32,698 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:25:32,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:25:32,699 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 15:25:32,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:25:32,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1323683243, now seen corresponding path program 1 times [2022-11-23 15:25:32,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:25:32,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750667831] [2022-11-23 15:25:32,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:25:32,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:25:32,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:25:32,853 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 15:25:32,853 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:25:32,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750667831] [2022-11-23 15:25:32,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750667831] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:25:32,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:25:32,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:25:32,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913881739] [2022-11-23 15:25:32,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:25:32,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:25:32,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:25:32,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:25:32,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:25:32,856 INFO L87 Difference]: Start difference. First operand 474 states and 1361 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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 15:25:32,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:25:32,991 INFO L93 Difference]: Finished difference Result 378 states and 1100 transitions. [2022-11-23 15:25:32,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:25:32,992 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) Word has length 11 [2022-11-23 15:25:32,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:25:32,995 INFO L225 Difference]: With dead ends: 378 [2022-11-23 15:25:32,995 INFO L226 Difference]: Without dead ends: 378 [2022-11-23 15:25:32,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:25:32,996 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 32 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:25:32,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 6 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:25:33,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2022-11-23 15:25:33,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 378. [2022-11-23 15:25:33,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 375 states have (on average 2.933333333333333) internal successors, (1100), 377 states have internal predecessors, (1100), 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 15:25:33,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 1100 transitions. [2022-11-23 15:25:33,025 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 1100 transitions. Word has length 11 [2022-11-23 15:25:33,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:25:33,025 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 1100 transitions. [2022-11-23 15:25:33,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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 15:25:33,026 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 1100 transitions. [2022-11-23 15:25:33,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-23 15:25:33,035 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:25:33,036 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:25:33,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:25:33,036 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 15:25:33,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:25:33,047 INFO L85 PathProgramCache]: Analyzing trace with hash 896381966, now seen corresponding path program 1 times [2022-11-23 15:25:33,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:25:33,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202772827] [2022-11-23 15:25:33,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:25:33,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:25:33,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:25:33,182 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 15:25:33,182 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:25:33,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202772827] [2022-11-23 15:25:33,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202772827] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:25:33,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:25:33,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:25:33,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216844896] [2022-11-23 15:25:33,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:25:33,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:25:33,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:25:33,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:25:33,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:25:33,185 INFO L87 Difference]: Start difference. First operand 378 states and 1100 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 15:25:33,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:25:33,295 INFO L93 Difference]: Finished difference Result 366 states and 1079 transitions. [2022-11-23 15:25:33,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:25:33,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2022-11-23 15:25:33,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:25:33,296 INFO L225 Difference]: With dead ends: 366 [2022-11-23 15:25:33,296 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 15:25:33,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:25:33,298 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 48 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:25:33,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 6 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:25:33,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 15:25:33,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 15:25:33,299 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 15:25:33,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 15:25:33,300 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2022-11-23 15:25:33,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:25:33,300 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 15:25:33,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 15:25:33,301 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 15:25:33,301 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 15:25:33,304 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-11-23 15:25:33,304 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-11-23 15:25:33,305 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-11-23 15:25:33,305 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-11-23 15:25:33,305 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-11-23 15:25:33,306 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-11-23 15:25:33,306 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-11-23 15:25:33,306 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-11-23 15:25:33,306 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-11-23 15:25:33,307 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-11-23 15:25:33,307 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-11-23 15:25:33,307 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-11-23 15:25:33,307 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-11-23 15:25:33,308 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-11-23 15:25:33,308 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-11-23 15:25:33,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:25:33,311 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-23 15:25:33,316 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-23 15:25:33,316 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:25:33,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:25:33 BasicIcfg [2022-11-23 15:25:33,319 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:25:33,319 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:25:33,320 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:25:33,320 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:25:33,320 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:25:20" (3/4) ... [2022-11-23 15:25:33,323 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 15:25:33,328 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-23 15:25:33,329 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-23 15:25:33,329 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-23 15:25:33,334 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 39 nodes and edges [2022-11-23 15:25:33,334 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-23 15:25:33,335 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-23 15:25:33,335 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 15:25:33,377 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de2f73-b841-4d62-865f-8457d83c5fc9/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 15:25:33,377 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:25:33,378 INFO L158 Benchmark]: Toolchain (without parser) took 15179.55ms. Allocated memory was 142.6MB in the beginning and 207.6MB in the end (delta: 65.0MB). Free memory was 96.2MB in the beginning and 104.8MB in the end (delta: -8.6MB). Peak memory consumption was 58.6MB. Max. memory is 16.1GB. [2022-11-23 15:25:33,378 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 142.6MB. Free memory is still 86.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:25:33,379 INFO L158 Benchmark]: CACSL2BoogieTranslator took 821.32ms. Allocated memory is still 142.6MB. Free memory was 95.6MB in the beginning and 71.6MB in the end (delta: 24.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-23 15:25:33,379 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.71ms. Allocated memory is still 142.6MB. Free memory was 71.6MB in the beginning and 69.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:25:33,379 INFO L158 Benchmark]: Boogie Preprocessor took 37.21ms. Allocated memory is still 142.6MB. Free memory was 69.5MB in the beginning and 66.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:25:33,380 INFO L158 Benchmark]: RCFGBuilder took 1194.15ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 66.9MB in the beginning and 99.1MB in the end (delta: -32.2MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. [2022-11-23 15:25:33,380 INFO L158 Benchmark]: TraceAbstraction took 12998.51ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 98.0MB in the beginning and 108.0MB in the end (delta: -10.0MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. [2022-11-23 15:25:33,381 INFO L158 Benchmark]: Witness Printer took 58.00ms. Allocated memory is still 207.6MB. Free memory was 108.0MB in the beginning and 104.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 15:25:33,383 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 142.6MB. Free memory is still 86.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 821.32ms. Allocated memory is still 142.6MB. Free memory was 95.6MB in the beginning and 71.6MB in the end (delta: 24.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.71ms. Allocated memory is still 142.6MB. Free memory was 71.6MB in the beginning and 69.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.21ms. Allocated memory is still 142.6MB. Free memory was 69.5MB in the beginning and 66.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1194.15ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 66.9MB in the beginning and 99.1MB in the end (delta: -32.2MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. * TraceAbstraction took 12998.51ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 98.0MB in the beginning and 108.0MB in the end (delta: -10.0MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. * Witness Printer took 58.00ms. Allocated memory is still 207.6MB. Free memory was 108.0MB in the beginning and 104.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.9s, 145 PlacesBefore, 38 PlacesAfterwards, 137 TransitionsBefore, 29 TransitionsAfterwards, 2366 CoEnabledTransitionPairs, 8 FixpointIterations, 61 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 123 TotalNumberOfCompositions, 8264 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3359, independent: 3067, independent conditional: 0, independent unconditional: 3067, dependent: 292, dependent conditional: 0, dependent unconditional: 292, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1752, independent: 1682, independent conditional: 0, independent unconditional: 1682, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1752, independent: 1641, independent conditional: 0, independent unconditional: 1641, dependent: 111, dependent conditional: 0, dependent unconditional: 111, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 111, independent: 41, independent conditional: 0, independent unconditional: 41, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 818, independent: 93, independent conditional: 0, independent unconditional: 93, dependent: 725, dependent conditional: 0, dependent unconditional: 725, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3359, independent: 1385, independent conditional: 0, independent unconditional: 1385, dependent: 222, dependent conditional: 0, dependent unconditional: 222, unknown: 1752, unknown conditional: 0, unknown unconditional: 1752] , Statistics on independence cache: Total cache size (in pairs): 162, Positive cache size: 138, Positive conditional cache size: 0, Positive unconditional cache size: 138, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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: 786]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 786]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 817]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 817]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 834]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 834]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 167 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 12.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 11.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 118 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 118 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 210 IncrementalHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 10 mSDtfsCounter, 210 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1102occurred in iteration=0, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 111 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-23 15:25:33,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de2f73-b841-4d62-865f-8457d83c5fc9/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