./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix028_power.opt_pso.opt_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_fc0ef86b-85d9-4b6c-a794-028d21a6918a/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0ef86b-85d9-4b6c-a794-028d21a6918a/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0ef86b-85d9-4b6c-a794-028d21a6918a/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0ef86b-85d9-4b6c-a794-028d21a6918a/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix028_power.opt_pso.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0ef86b-85d9-4b6c-a794-028d21a6918a/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0ef86b-85d9-4b6c-a794-028d21a6918a/bin/utaipan-ByfvJB40ur --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 a86612b573a63cde2c4106f45bf8b3ea66989a894eb80420a80ff8b17f8f03d1 --- 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-38b53e6 [2022-11-26 00:53:42,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:53:42,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:53:42,335 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:53:42,336 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:53:42,337 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:53:42,339 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:53:42,341 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:53:42,343 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:53:42,345 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:53:42,346 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:53:42,347 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:53:42,348 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:53:42,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:53:42,351 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:53:42,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:53:42,353 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:53:42,355 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:53:42,357 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:53:42,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:53:42,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:53:42,363 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:53:42,365 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:53:42,366 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:53:42,371 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:53:42,371 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:53:42,372 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:53:42,373 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:53:42,374 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:53:42,375 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:53:42,376 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:53:42,377 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:53:42,378 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:53:42,379 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:53:42,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:53:42,381 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:53:42,382 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:53:42,383 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:53:42,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:53:42,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:53:42,386 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:53:42,387 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0ef86b-85d9-4b6c-a794-028d21a6918a/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-26 00:53:42,416 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:53:42,416 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:53:42,417 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:53:42,417 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:53:42,418 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:53:42,419 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:53:42,419 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:53:42,419 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:53:42,420 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:53:42,420 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:53:42,420 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:53:42,421 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:53:42,421 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:53:42,421 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:53:42,422 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:53:42,422 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:53:42,423 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:53:42,423 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:53:42,424 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:53:42,424 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:53:42,425 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:53:42,425 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:53:42,425 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:53:42,426 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:53:42,426 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:53:42,426 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:53:42,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:53:42,427 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:53:42,427 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:53:42,428 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:53:42,428 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:53:42,428 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:53:42,429 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:53:42,429 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:53:42,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:53:42,430 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:53:42,430 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:53:42,430 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:53:42,431 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:53:42,431 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:53:42,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:53:42,432 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:53:42,432 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:53:42,433 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_fc0ef86b-85d9-4b6c-a794-028d21a6918a/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0ef86b-85d9-4b6c-a794-028d21a6918a/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a86612b573a63cde2c4106f45bf8b3ea66989a894eb80420a80ff8b17f8f03d1 [2022-11-26 00:53:42,843 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:53:42,887 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:53:42,890 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:53:42,891 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:53:42,892 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:53:42,893 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0ef86b-85d9-4b6c-a794-028d21a6918a/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/pthread-wmm/mix028_power.opt_pso.opt_rmo.opt.i [2022-11-26 00:53:46,363 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:53:46,697 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:53:46,698 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0ef86b-85d9-4b6c-a794-028d21a6918a/sv-benchmarks/c/pthread-wmm/mix028_power.opt_pso.opt_rmo.opt.i [2022-11-26 00:53:46,717 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0ef86b-85d9-4b6c-a794-028d21a6918a/bin/utaipan-ByfvJB40ur/data/888721f88/4af1e0d01de74ab186bce6a57c1c570d/FLAG23cf7922f [2022-11-26 00:53:46,736 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0ef86b-85d9-4b6c-a794-028d21a6918a/bin/utaipan-ByfvJB40ur/data/888721f88/4af1e0d01de74ab186bce6a57c1c570d [2022-11-26 00:53:46,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:53:46,749 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:53:46,750 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:53:46,751 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:53:46,761 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:53:46,762 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:53:46" (1/1) ... [2022-11-26 00:53:46,764 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31cc2280 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:53:46, skipping insertion in model container [2022-11-26 00:53:46,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:53:46" (1/1) ... [2022-11-26 00:53:46,773 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:53:46,819 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:53:47,099 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_fc0ef86b-85d9-4b6c-a794-028d21a6918a/sv-benchmarks/c/pthread-wmm/mix028_power.opt_pso.opt_rmo.opt.i[966,979] [2022-11-26 00:53:47,367 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:53:47,368 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:53:47,368 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:53:47,368 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:53:47,369 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:53:47,373 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:53:47,374 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:53:47,377 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:53:47,378 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:53:47,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:53:47,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:53:47,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:53:47,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:53:47,386 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:53:47,386 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:53:47,387 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:53:47,388 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:53:47,389 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:53:47,389 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:53:47,390 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:53:47,390 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:53:47,390 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:53:47,391 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:53:47,394 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:53:47,395 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:53:47,396 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:53:47,404 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:53:47,405 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:53:47,405 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:53:47,409 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:53:47,409 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:53:47,421 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:53:47,422 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:53:47,435 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:53:47,455 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_fc0ef86b-85d9-4b6c-a794-028d21a6918a/sv-benchmarks/c/pthread-wmm/mix028_power.opt_pso.opt_rmo.opt.i[966,979] [2022-11-26 00:53:47,503 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:53:47,507 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:53:47,507 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:53:47,508 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:53:47,508 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:53:47,518 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:53:47,522 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:53:47,525 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:53:47,526 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:53:47,529 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:53:47,530 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:53:47,531 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:53:47,532 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:53:47,535 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:53:47,542 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:53:47,543 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:53:47,544 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:53:47,544 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:53:47,544 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:53:47,546 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:53:47,546 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:53:47,547 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:53:47,547 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:53:47,549 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:53:47,553 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:53:47,554 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:53:47,558 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:53:47,561 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:53:47,563 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:53:47,565 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:53:47,570 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:53:47,581 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:53:47,583 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:53:47,630 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:53:47,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:53:47 WrapperNode [2022-11-26 00:53:47,631 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:53:47,633 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:53:47,633 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:53:47,633 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:53:47,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:53:47" (1/1) ... [2022-11-26 00:53:47,675 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:53:47" (1/1) ... [2022-11-26 00:53:47,708 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 145 [2022-11-26 00:53:47,708 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:53:47,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:53:47,709 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:53:47,710 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:53:47,721 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:53:47" (1/1) ... [2022-11-26 00:53:47,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:53:47" (1/1) ... [2022-11-26 00:53:47,726 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:53:47" (1/1) ... [2022-11-26 00:53:47,726 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:53:47" (1/1) ... [2022-11-26 00:53:47,737 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:53:47" (1/1) ... [2022-11-26 00:53:47,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:53:47" (1/1) ... [2022-11-26 00:53:47,742 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:53:47" (1/1) ... [2022-11-26 00:53:47,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:53:47" (1/1) ... [2022-11-26 00:53:47,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:53:47,749 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:53:47,749 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:53:47,749 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:53:47,750 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:53:47" (1/1) ... [2022-11-26 00:53:47,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:53:47,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0ef86b-85d9-4b6c-a794-028d21a6918a/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:53:47,788 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0ef86b-85d9-4b6c-a794-028d21a6918a/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:53:47,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0ef86b-85d9-4b6c-a794-028d21a6918a/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:53:47,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:53:47,853 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-26 00:53:47,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:53:47,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:53:47,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:53:47,853 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-26 00:53:47,854 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-26 00:53:47,854 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-26 00:53:47,855 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-26 00:53:47,856 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-26 00:53:47,856 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-26 00:53:47,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:53:47,856 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-26 00:53:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:53:47,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:53:47,859 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-26 00:53:48,114 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:53:48,117 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:53:48,620 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:53:48,851 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:53:48,851 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:53:48,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:53:48 BoogieIcfgContainer [2022-11-26 00:53:48,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:53:48,858 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:53:48,858 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:53:48,862 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:53:48,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:53:46" (1/3) ... [2022-11-26 00:53:48,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@367aef6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:53:48, skipping insertion in model container [2022-11-26 00:53:48,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:53:47" (2/3) ... [2022-11-26 00:53:48,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@367aef6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:53:48, skipping insertion in model container [2022-11-26 00:53:48,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:53:48" (3/3) ... [2022-11-26 00:53:48,866 INFO L112 eAbstractionObserver]: Analyzing ICFG mix028_power.opt_pso.opt_rmo.opt.i [2022-11-26 00:53:48,877 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-26 00:53:48,891 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:53:48,891 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-26 00:53:48,892 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 00:53:48,961 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-26 00:53:49,011 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:53:49,033 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 128 places, 120 transitions, 255 flow [2022-11-26 00:53:49,046 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 128 places, 120 transitions, 255 flow [2022-11-26 00:53:49,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 120 transitions, 255 flow [2022-11-26 00:53:49,116 INFO L130 PetriNetUnfolder]: 2/117 cut-off events. [2022-11-26 00:53:49,116 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-26 00:53:49,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 117 events. 2/117 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 78. Up to 2 conditions per place. [2022-11-26 00:53:49,131 INFO L119 LiptonReduction]: Number of co-enabled transitions 2692 [2022-11-26 00:53:57,051 INFO L134 LiptonReduction]: Checked pairs total: 9659 [2022-11-26 00:53:57,051 INFO L136 LiptonReduction]: Total number of compositions: 103 [2022-11-26 00:53:57,061 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 32 transitions, 79 flow [2022-11-26 00:53:57,205 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1678 states, 1652 states have (on average 3.5750605326876514) internal successors, (5906), 1677 states have internal predecessors, (5906), 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) [2022-11-26 00:53:57,238 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:53:57,245 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;@6a50f144, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:53:57,246 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-26 00:53:57,253 INFO L276 IsEmpty]: Start isEmpty. Operand has 1678 states, 1652 states have (on average 3.5750605326876514) internal successors, (5906), 1677 states have internal predecessors, (5906), 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) [2022-11-26 00:53:57,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-26 00:53:57,260 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:53:57,260 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-26 00:53:57,261 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-26 00:53:57,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:53:57,267 INFO L85 PathProgramCache]: Analyzing trace with hash 501574944, now seen corresponding path program 1 times [2022-11-26 00:53:57,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:53:57,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476270141] [2022-11-26 00:53:57,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:53:57,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:53:57,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:53:57,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:53:57,662 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:53:57,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476270141] [2022-11-26 00:53:57,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476270141] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:53:57,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:53:57,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 00:53:57,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701183437] [2022-11-26 00:53:57,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:53:57,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:53:57,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:53:57,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:53:57,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:53:57,709 INFO L87 Difference]: Start difference. First operand has 1678 states, 1652 states have (on average 3.5750605326876514) internal successors, (5906), 1677 states have internal predecessors, (5906), 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 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:57,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:53:57,915 INFO L93 Difference]: Finished difference Result 946 states and 2807 transitions. [2022-11-26 00:53:57,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:53:57,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-26 00:53:57,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:53:57,955 INFO L225 Difference]: With dead ends: 946 [2022-11-26 00:53:57,956 INFO L226 Difference]: Without dead ends: 946 [2022-11-26 00:53:57,957 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 [2022-11-26 00:53:57,965 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 15 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:53:57,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 8 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:53:57,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2022-11-26 00:53:58,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 946. [2022-11-26 00:53:58,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 928 states have (on average 3.0247844827586206) internal successors, (2807), 945 states have internal predecessors, (2807), 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) [2022-11-26 00:53:58,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 2807 transitions. [2022-11-26 00:53:58,107 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 2807 transitions. Word has length 5 [2022-11-26 00:53:58,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:53:58,108 INFO L495 AbstractCegarLoop]: Abstraction has 946 states and 2807 transitions. [2022-11-26 00:53:58,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:58,109 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 2807 transitions. [2022-11-26 00:53:58,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-26 00:53:58,111 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:53:58,111 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:53:58,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:53:58,112 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-26 00:53:58,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:53:58,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1776949661, now seen corresponding path program 1 times [2022-11-26 00:53:58,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:53:58,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460288227] [2022-11-26 00:53:58,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:53:58,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:53:58,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:53:58,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:53:58,322 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:53:58,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460288227] [2022-11-26 00:53:58,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460288227] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:53:58,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:53:58,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:53:58,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436409190] [2022-11-26 00:53:58,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:53:58,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:53:58,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:53:58,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:53:58,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:53:58,327 INFO L87 Difference]: Start difference. First operand 946 states and 2807 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) [2022-11-26 00:53:58,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:53:58,505 INFO L93 Difference]: Finished difference Result 790 states and 2393 transitions. [2022-11-26 00:53:58,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:53:58,505 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 [2022-11-26 00:53:58,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:53:58,511 INFO L225 Difference]: With dead ends: 790 [2022-11-26 00:53:58,512 INFO L226 Difference]: Without dead ends: 790 [2022-11-26 00:53:58,512 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 [2022-11-26 00:53:58,513 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 30 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:53:58,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 16 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:53:58,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2022-11-26 00:53:58,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2022-11-26 00:53:58,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 784 states have (on average 3.052295918367347) internal successors, (2393), 789 states have internal predecessors, (2393), 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) [2022-11-26 00:53:58,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 2393 transitions. [2022-11-26 00:53:58,551 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 2393 transitions. Word has length 11 [2022-11-26 00:53:58,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:53:58,551 INFO L495 AbstractCegarLoop]: Abstraction has 790 states and 2393 transitions. [2022-11-26 00:53:58,552 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) [2022-11-26 00:53:58,552 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 2393 transitions. [2022-11-26 00:53:58,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-26 00:53:58,554 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:53:58,555 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:53:58,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:53:58,556 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-26 00:53:58,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:53:58,556 INFO L85 PathProgramCache]: Analyzing trace with hash -749137004, now seen corresponding path program 1 times [2022-11-26 00:53:58,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:53:58,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438752106] [2022-11-26 00:53:58,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:53:58,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:53:58,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:53:58,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:53:58,734 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:53:58,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438752106] [2022-11-26 00:53:58,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438752106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:53:58,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:53:58,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:53:58,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706490749] [2022-11-26 00:53:58,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:53:58,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:53:58,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:53:58,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:53:58,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:53:58,742 INFO L87 Difference]: Start difference. First operand 790 states and 2393 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-11-26 00:53:58,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:53:58,936 INFO L93 Difference]: Finished difference Result 670 states and 2066 transitions. [2022-11-26 00:53:58,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:53:58,937 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2022-11-26 00:53:58,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:53:58,942 INFO L225 Difference]: With dead ends: 670 [2022-11-26 00:53:58,942 INFO L226 Difference]: Without dead ends: 670 [2022-11-26 00:53:58,943 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 [2022-11-26 00:53:58,944 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 26 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:53:58,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 12 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:53:58,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2022-11-26 00:53:58,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 670. [2022-11-26 00:53:58,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 667 states have (on average 3.0974512743628186) internal successors, (2066), 669 states have internal predecessors, (2066), 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) [2022-11-26 00:53:58,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 2066 transitions. [2022-11-26 00:53:58,986 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 2066 transitions. Word has length 12 [2022-11-26 00:53:58,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:53:58,989 INFO L495 AbstractCegarLoop]: Abstraction has 670 states and 2066 transitions. [2022-11-26 00:53:58,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-11-26 00:53:58,990 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 2066 transitions. [2022-11-26 00:53:58,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-26 00:53:58,999 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:53:59,000 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:53:59,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:53:59,000 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-26 00:53:59,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:53:59,002 INFO L85 PathProgramCache]: Analyzing trace with hash -922652978, now seen corresponding path program 1 times [2022-11-26 00:53:59,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:53:59,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562292029] [2022-11-26 00:53:59,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:53:59,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:53:59,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:53:59,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:53:59,230 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:53:59,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562292029] [2022-11-26 00:53:59,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562292029] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:53:59,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:53:59,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:53:59,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888394949] [2022-11-26 00:53:59,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:53:59,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:53:59,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:53:59,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:53:59,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:53:59,233 INFO L87 Difference]: Start difference. First operand 670 states and 2066 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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) [2022-11-26 00:53:59,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:53:59,387 INFO L93 Difference]: Finished difference Result 658 states and 2045 transitions. [2022-11-26 00:53:59,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:53:59,387 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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 19 [2022-11-26 00:53:59,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:53:59,388 INFO L225 Difference]: With dead ends: 658 [2022-11-26 00:53:59,388 INFO L226 Difference]: Without dead ends: 0 [2022-11-26 00:53:59,388 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 [2022-11-26 00:53:59,390 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 41 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:53:59,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 12 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:53:59,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-26 00:53:59,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-26 00:53:59,391 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) [2022-11-26 00:53:59,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-26 00:53:59,392 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2022-11-26 00:53:59,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:53:59,392 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-26 00:53:59,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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) [2022-11-26 00:53:59,392 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-26 00:53:59,392 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-26 00:53:59,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-11-26 00:53:59,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-11-26 00:53:59,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-11-26 00:53:59,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-11-26 00:53:59,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-11-26 00:53:59,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-11-26 00:53:59,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-11-26 00:53:59,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-11-26 00:53:59,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-11-26 00:53:59,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-11-26 00:53:59,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-11-26 00:53:59,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-11-26 00:53:59,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-11-26 00:53:59,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-11-26 00:53:59,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-11-26 00:53:59,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:53:59,412 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-26 00:53:59,418 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-26 00:53:59,418 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:53:59,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:53:59 BasicIcfg [2022-11-26 00:53:59,421 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:53:59,422 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:53:59,422 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:53:59,422 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:53:59,423 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:53:48" (3/4) ... [2022-11-26 00:53:59,426 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-26 00:53:59,432 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-26 00:53:59,432 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-26 00:53:59,432 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-26 00:53:59,440 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2022-11-26 00:53:59,440 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-26 00:53:59,441 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-26 00:53:59,441 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-26 00:53:59,502 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0ef86b-85d9-4b6c-a794-028d21a6918a/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 00:53:59,504 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:53:59,504 INFO L158 Benchmark]: Toolchain (without parser) took 12756.13ms. Allocated memory was 182.5MB in the beginning and 226.5MB in the end (delta: 44.0MB). Free memory was 141.8MB in the beginning and 135.7MB in the end (delta: 6.2MB). Peak memory consumption was 52.7MB. Max. memory is 16.1GB. [2022-11-26 00:53:59,505 INFO L158 Benchmark]: CDTParser took 0.79ms. Allocated memory is still 123.7MB. Free memory is still 92.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:53:59,505 INFO L158 Benchmark]: CACSL2BoogieTranslator took 881.45ms. Allocated memory is still 182.5MB. Free memory was 141.8MB in the beginning and 115.3MB in the end (delta: 26.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-26 00:53:59,506 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.93ms. Allocated memory is still 182.5MB. Free memory was 115.3MB in the beginning and 112.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:53:59,506 INFO L158 Benchmark]: Boogie Preprocessor took 38.89ms. Allocated memory is still 182.5MB. Free memory was 112.5MB in the beginning and 111.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:53:59,506 INFO L158 Benchmark]: RCFGBuilder took 1106.18ms. Allocated memory is still 182.5MB. Free memory was 111.1MB in the beginning and 75.5MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-26 00:53:59,507 INFO L158 Benchmark]: TraceAbstraction took 10563.67ms. Allocated memory was 182.5MB in the beginning and 226.5MB in the end (delta: 44.0MB). Free memory was 74.8MB in the beginning and 139.9MB in the end (delta: -65.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:53:59,507 INFO L158 Benchmark]: Witness Printer took 82.05ms. Allocated memory is still 226.5MB. Free memory was 139.9MB in the beginning and 135.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 00:53:59,511 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.79ms. Allocated memory is still 123.7MB. Free memory is still 92.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 881.45ms. Allocated memory is still 182.5MB. Free memory was 141.8MB in the beginning and 115.3MB in the end (delta: 26.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.93ms. Allocated memory is still 182.5MB. Free memory was 115.3MB in the beginning and 112.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.89ms. Allocated memory is still 182.5MB. Free memory was 112.5MB in the beginning and 111.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1106.18ms. Allocated memory is still 182.5MB. Free memory was 111.1MB in the beginning and 75.5MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 10563.67ms. Allocated memory was 182.5MB in the beginning and 226.5MB in the end (delta: 44.0MB). Free memory was 74.8MB in the beginning and 139.9MB in the end (delta: -65.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 82.05ms. Allocated memory is still 226.5MB. Free memory was 139.9MB in the beginning and 135.7MB in the end (delta: 4.2MB). 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: 8.0s, 128 PlacesBefore, 41 PlacesAfterwards, 120 TransitionsBefore, 32 TransitionsAfterwards, 2692 CoEnabledTransitionPairs, 7 FixpointIterations, 41 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 1 ChoiceCompositions, 103 TotalNumberOfCompositions, 9659 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3358, independent: 3074, independent conditional: 0, independent unconditional: 3074, dependent: 284, dependent conditional: 0, dependent unconditional: 284, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1780, independent: 1713, independent conditional: 0, independent unconditional: 1713, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1780, independent: 1663, independent conditional: 0, independent unconditional: 1663, dependent: 117, dependent conditional: 0, dependent unconditional: 117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 117, independent: 50, independent conditional: 0, independent unconditional: 50, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 839, independent: 129, independent conditional: 0, independent unconditional: 129, dependent: 710, dependent conditional: 0, dependent unconditional: 710, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3358, independent: 1361, independent conditional: 0, independent unconditional: 1361, dependent: 217, dependent conditional: 0, dependent unconditional: 217, unknown: 1780, unknown conditional: 0, unknown unconditional: 1780] , Statistics on independence cache: Total cache size (in pairs): 176, Positive cache size: 150, Positive conditional cache size: 0, Positive unconditional cache size: 150, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, 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: 756]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 756]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 808]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 808]: 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, 153 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 10.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 112 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 112 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 225 IncrementalHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 20 mSDtfsCounter, 225 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=1678occurred 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: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 129 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! [2022-11-26 00:53:59,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0ef86b-85d9-4b6c-a794-028d21a6918a/bin/utaipan-ByfvJB40ur/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